China didn't okay North Korean nuclear program. It was one of the biggest opponents. It still doesn't sell them TELs. In fact that TEL embargo was one of the biggest problems of NK's nuclear program until they started producing good ones 2-3 years ago. North Korea ignored China's opinion and went ahead. Because there was nothing China could do besides invading them. China was complying with sanctions even regarding food and healthcare. So North Korea, in my opinion correctly, decided that China's security guarantee wasn't reliable. You don't watch your ally struggle to find food. Yet China did exactly that for decades.
Talking about exports of modern fighter jets, how many countries are betting the next 30 years of their air force on the F-35? Quite a lot. On the other hand, China's friend Pakistan would order American aircraft if it could. F-22 and F-104 comparison is meaningless, sorry.
Look, I am very pro-China as you can easily see from my other posts. But we need to recognize that there are massive problems with China's foreign policy and communication with the outside world. For example China shouldn't have any problems with US bases in the Philippines in 2023. But it does. If it continues this "avoid any confrontation to avoid any economic loss" policy it will get treated like a shopping mall rather than a great power. This is why I think it should support Russia and invade Taiwan before 2030. China hasn't stood up for its redlines or friends for 40+ years. And that is a bad look. The US is sending 200 soldiers to Taiwan. A redline regardless of how you can bother to twist it. China's reaction will affect its long term credibility.
There's no source whatsoever about China being the "biggest opponent" of NK nuclearization. China doesn't give them TELs because it signed a treaty to the UN not to do so.
If what you claim is true, that means NK is a hostile nuclear power and there's not a snowball's chance they would be allowed to remain on the map. China had no issues fighting both SK and US when it had far less means, if Beijing didn't want a nuclear Pyongyang, it would have couped them, crippled their program with the myriad means they have etc. And Pyongyang today would not have a article 5 style agreement with China that effectively means wherever China goes, NK will follow.
Philippines is an US colony so why should China not have problems that US can move soldiers into its own territories? Did nato have a panic every time USSR moved troops into Poland or East Germany?
What you seem to think is that progress is not fast enough, and what I'm telling you is finding rose tinted glasses into the past when things were much worse is not the solution.
Of course America is dangerous. But that is precisely why they won't go away just by demanding their submission and waving a wand.
We are dealing with the 2nd largest economy in the world, the largest military who has spent a long time slowly building up, using influence and violence to buy and takeover other countries.
Germany in ww2 was not this big, and the allies let them cross 3 major red lines, 1. Building up a massive military and taking back the Rhineland. 2. Annexing Austria. 3. Demanding Eastern territories, before war started in earnest.
Supporting Russia is already fully ongoing. There's no hurry to make Russians win fast. China is ready to defend Taiwan from America whenever US does its thing, but like I stated above, the war America is trying to start is greater than any war we have ever seen, and they're a bigger aggressor than that ever seen before. So the utmost tact and careful approach will be needed.