Negative feedback after correcting a native speaker is either evidence of the sexiest bigoted Latinx culture - or evidence of a type of cultural imperialism depending on where you stand on these issues. I just wish folks could draw clearer connections to the harm of using Latina vs latinx

What harm?

It offends upper middle class, privileged white women with questionably valid university degrees in the Humanities and a value system based around the extremely questionable critical theory, rather than the extremely successful for humanity method we know as reason (or the less successful but at least proven to mostly not implode and utterly destroy society method of religious conservatism)

It is an American imposed thing that's trying to fix your "wrong" culture. It doesn't even make grammatical sense.