When China was down, poor, and deemed the sick man of Asia, where were these altruistic Chinese people you speak of? Most of us were probably ashamed of the country, ashamed of it's people for being "uncouthed" and not Westernized, most of all they don't speak the languages of sophistication like English, French, Spanish etc...Just look at how most Hong Kongers used to treat and looked down on Chinese mainlanders, the same can be said of the Chinese in Taiwan. They all used and still do think they are much better than Chinese people and China.Lots of overseas Chinese have their roots trace back to the foreign invasion and internal strife, due to the incompetence of the gov their ancestral rights were rob from them, if giving out basic homes is too hard at least provide a place for them to stay till they are back on their feet, as for the old and sick it's a worthy cause for state and its citizens to provide for them even if there's no material returns
We often overlook old and sick people can inspire others to greatness by just being where they are , I am also not advocating we follow in Israel's footstep directly but go beyond them and be better .
China doesn't owe anyone of us no more than we owe China anything except recognition of the fact that most of us were scattered by choice and or forced by circumstances that our forefathers/mothers endured. The benefits and privileges must be catered first and foremost to those who stayed, endured, and persisted despite the hardships. To the one's who got themselves educated abroad but chose to come back for the love of country and helped China prosper to where it is today; a stronger more resilient country able to defy the juggernaut that's America and the collective west.
If China was as weak as it was in the past, would you even propose such a scenario or feel this entitled to make this emotional demand?