I also believe most are just normal Americans that happen to also be conservative. It's a thing, doesn't have to be a big conspiracy.
I also don't view it as an "unfortunate nexus" as I don't view being on the right a bad thing.
I welcome anyone to be a conservative, including Chinese-Americans.
There are very few organized socialist chinese-americans in the press right now. So, this is pretty one-sided because I believe underneath the "race" side of things, a lot of people in the chinese community probably believe in what I call socialism here: Basic human rights, and social services. The US right wing is fighting to remove these, and remove basic human rights like abortion.
So yes. To me? this is very unfortunate. As to the conspiracy side, well, Q gotta Q. But I would worry there is a tendency to agglomerate into these cesspits of political lunacy, to leverage it for short-term gain.
As a libertarian conservative I support abortion, but not late-term abortion or post birth.
That and religion in general is mainly an evangelical right thing and is less popular within the party nowadays.
I'm not seeing this reflected in things said in the non-US media (I'm in australia) and my experience here, is that incursions into specific language and culture groups to garner votes tends to be crude, and in the margins: it works best when it appeals to pretty simple messages, and they tend not to be centerist ones.