I think we've already been shown how to handle it and probably by the same people doing this op. You'd point out they never talk about the other countries with much worse records in all areas, ask why they are so obsessed with hating on Asian people and just tell them to stop being a bigot.

Don't even go into some kind of complex geopolitical argument or imply there actually is one, just make the issue about cranky reactionaries bothering normal people with their nonsense.