Absolutely not. China already has a youth unemployment problem. The solution to demographic woes is automation, not the mass importation of labor which has disastrous secondary effects as seen in Europe and Canada
Both problems are linked. It's complex but the youth unemployment is linked to a sluggish economy, having more people to consume products and contribute to local economy will make the economy healthier, improve demand and create jobs. Again, I have explained that for Europe and Canada, they are importing wayyyy too many people for their base population level. A few hundred thousand people a year for countries with populations of 20-50 million is too much of a shock, that's like a full 1-5% of their population within a handful of years. For a nation with 1.4 billion people, it's another story, entire nations are just a single mega-city by China's standards.
Let's have an example, if 100 new people move into a tiny little village of 100 people, the entire village changes. If 100 people move into a town of 1000, not much changes, and if 10 people moves into a mega-city of a million people, nobody will even notice them.
I live in China and can guarantee you that mass immigration will be an absolute disaster for the country. You can draw this conclusion just by observing some of the events of the last couple of decades. This will be unpleasant reading for many here, but modern Han Chinese simply cannot assimilate other ethnicities organically. Just take the Uyghurs as an example. 1000+ years of Uyghur-Han contact and what was XJ like prior to 2015? 0.5% intermarriage and 70% of Uyghurs not even being able to write their names in Chinese. Just absolutely zero social contract between the two ethnic groups in every strata of society, from grassroots to the elite. Any mass immigration involving pretty much any ethnic group will encounter the exact same conflict in China with all the ensuing controversy and negative attention from the rest of the world, especially the developing world were these migrants will invariably come from.
China has been assimilating tons of people over the last 2 thousands years. And you can't compare new immigrants to Uyghurs, they are central to one region for hundreds of years, mainly practice a singular religion and have strong ties to other central asian countries and live on the far rural west of the country. Only really in the last 10 years can you easily travel from the coast to Xinjiang so it's no surprise that they haven't integrated well so far.
I'm talking about a slow but increasing stream of new immigrants that are deliberately mixed evenly between cities to ensure that they don't form the kind of enclaves that cause trouble. If you wake up, go to work, go watch a movie and all you see all day everyday is han chinese, you will assimilate pretty quickly. And again, China is the one calling the shots here, they don't have to play fair. Have 90% of the accepted immigrants be female, threaten to deport them if they can't pick up fluent mandarin and a steady job within 2 years or whatever you want, they have time to perfect the process.
And again, a few thousand thousand new people a year for Canada/Europe is society changing, that's 1% of the population every year, 10% over 10 years, no shit they're having issues. By contrast 500k people every year is like 0.02% of China's population. The only way they will cause trouble if they all cram into the same city or province. I'm not even saying that China should get 500k immgriants a year, hell I doubt that the country can attract that many people, but it certainly afford to be more then the 1000+ new immgriants that the country is currently accepting. It will be a slow process of ramping up too, it's not like the country can open the gates and let in a few hundred thouand people in a month or two. It will take many years and it's better to start ramping up today rather than in 2040 if the population crisis really does get really bad.
Just look at Korea or Japan, they only really opening to immigration after the problem is so bad that they can't handle it anymore, and they will also have the same issues in intergrating them as China does. Better to start early and slowly ramp up, rather then ignore the problem and panic once the issue is so bad that you can't take it any more.
A few questions:
1. how many people want to come to China?
2. are they willing and able to learn Chinese?
3. are they willing and able to accept Chinese culture?
These are not trivial questions because most of the world, even though the average person is from a developing country, also speaks a Indo-European language, believe in western religion and practices western culture.
And if they are only willing to come to China but not willing to learn Chinese and at least tolerate Chinese culture as the mainstream culture, then they're just a source of future instability no matter what skills they bring.
The only group of people that historically came to China in large enough numbers to matter, and with the capability to learn Chinese and tolerate Chinese culture, is from Southeast and Central Asia. China's neighbors.
Both regions are themselves experiencing population stagnation or decline.
Which is why it's better to start outreach programs today rather then tmr.
1) Considering countries like Myanmar, Pakistan, Russia, Nepal, cambodia, philippines etc etc, I'm sure that you can find a few desperate enough. Quality of life in China is so much better then it was 10 years ago and still improving quite fast. It's all about advertising anyway. You have countries like Canada/australia literally showing Indians ads to get them to come to their country.
2) Yes, language and culture is a issue, but more will probably start to learn if they know that China is actively looking for immigrants. Why even bother to learn if there's no incentive after all? And China has full control over their citizenship, just make it an requirement to be fluent in Chinese to gain citizenship, or say that once they set foot in China, they are on probation for 2 years to learn the language or be deported or something like that.
3) Again, with control of movements, they don't have a choice. People don't assimilate well because they form tight knit commities with their own kind, considering that they tend to immigrate within a group and have freedom of movement once they gain citizenship so they flock togethor. Just do what Singapore does and evenly spread them out. Can't help but pick up Chinese culture if it's just you and your family in a city of hundreds of thousands of chinese and it's chinese that you interact with every single day. Contrast with Canada or Europe where you have entire ghettos full of the same race or nationality living togethor.
4) Oh and SEA isn't really declining, indonesia is barely in replacement rate yes but Laos, myanmar, philippines and cambodia are comfortably above replacement rate. All have a decent amount of chinese in their population. Indoneasia has like the 4th largest population in the world, so even if they're stagnating or have a declining population it's still a large pool of people to draw on from. What are they gonna do, ban freedom of movement? So many of them already immgrate to western countries anyway. If anything, brain drain is a good way to weaken a country. Eastern Europe has been ravaged by massive population decline via people moving to western europe over the last few decades. You think Germany or France or Britan gives a shit? They probably consider it a bonus if anything and will continue to drain eastern europe to the last man without remorse.