It helps them with all minorities, not just Asians.
But African Americans are the only ones not budging so far.
However gaining with Minorities doesn't help you win Presidencies or the Senate, unless you win 60%+ of them. At that point New York flips and California becomes a swing state.
So far it will help the GOP, but only in the House.
I do think there are reasons why the NYC Chinatowns specifically would be more susceptible to supporting local/state/federal R's than Chinese Americans elsewhere would be- or other Asian groups or immigrant groups in NYC for that matter. But that's irrelevant to this thread, and I won't comment on communities I have no real-life exposure to or interaction with.
In any case, I wouldn't be so bullish on where Dems stand with Black voters either. Sky-high margins of victory don't matter if turnout plummets.