The person you responded to was saying 'my stupid racist neighbours can't tell Asian peoples apart and accused Laotians they've known their entire life of being Chinese when they were trying to blame Chinese-Americans re. Covid'. They weren't saying 'it would have been totally fine if those racists were attacking the latter instead.'
It's depressing that it needs to be said, but here we are I guess.
I've certainly read enough posts where people think certain things can be said about other people and it's okay because they're the right type of wrong Asian, unfortunately.
And I've *definitely* seen the sentiment expressed where someone goes "they aren't even Chinese," without realizing what they're implying was that it would have not been a problem if they were.
Plenty of Chinese people are a bit on edge thanks to the increased sinophobia that has resulted in, among other things, the very attack that this thread is about.
I always think about WW2 as one of the more blatant examples of this. Chinese people wore pins that said "I'm Chinese" or "Not Japanese," because there was so much anti-Japanese sentiment. Unfortunately, in some ways "don't attack me, I'm not Japanese" is sort of saying "I don't care if you attack Japanese people, just leave me out of it."
& we see that same (unintentional, hopefully) mindset now. Obviously not everyone and everywhere, but it shouldn't exist at all.
I didn't get that impression of "it would have been fine if the racists were attacking Chinese people instead of unrelated Laos people," but maybe someone else did since that sort of rhetoric is quite common.