Obviously those who are basically bribed by the government with privileges and just siphoning money off relatively easy work due to past academic merit will be the last to leave. Their equivalent in China would also be the last Americans to leave China. They occupy an easy position and may even be entirely naturalized with honorary Anglo status.From my experiences and this is all for the moment, it could very well change in the future. Yes there have been quite a few Chinese expats heading back to China recently. They mostly fall in the bracket of being less savy and educated at a subpar university, laid off from their job, not being able to find a new oppurtunity, and thus not able to get their visa in order, so they have no choice. There are those of course who have to go back for family reasons. As for the ones who speak English at a professional level, and either have an advanced degree or a bachelor's from an Ivy League, I hate to break it, but most of them would prefer to stay in America.
With respect to how they feel about China, they're all proud of being Chinese and mostly speak Chinese to eachother, patronize Chinese businesses etc. But when you're older you have no priority more important than putting food on the table and simply put, patriotism doesn't put food on the table. These are some realities to acknowledge, like eventhough Chinese tech has come a long way, American tech companies are still by far more prestigious and pay way better than Chinese ones do, and then there's of course the stock option which probably needs no explanation. Let's not even talk about finance where, whatever feelings about that industry, in China thanks to Xi's common prosperity policy working in finance only pays a little better than being a waiter. So if you're a Chinese expat working at Goldman Sachs in New York, why would you ever go back to China?
As for foreign born diaspora, I'll keep it short in that they mostly identify with their birth country. And even if they don't, they don't speak Chinese very well, their relatives have all passed away, and they have no friends in China, so China means nothing to them.
Now yes, America in many ways has become a lot more dangerous for East Asians. In the future we may even see shit like internment or a fullblown Republican vs Democrats civil war. But for now, let's not exaggerate, being a Chinese in America today is not the same as being Muslim in Myanmar or even a Chinese in 1990s Indonesia. People encounter bs everyday, but that's just a part of being an adult. By and large, and I know it may seem strange considering what I've said in the past, but most people are just getting on with their lives.
What you should consider is, can America afford to give such privileges to the majority of Chinese expats they need to keep for increased competitiveness? And the answer is, in the long term, no.