The problem with this line of thinking is that the groups in question aren’t monoliths. Latinx wasn’t a term made by white people, it was made by Latinx/Latino non-binary people and then adopted more broadly because they advocated for it.

Some other people of the affected group thinking it’s silly doesn’t mean the term or sensitivity is just made up white savior SJWism. The are plenty of women who think a woman’s place is in the kitchen and following their husband’s lead, but that doesn’t mean feminism is junk. People have a tendency to latch on to some segment of the population that thinks the SJW term is silly not because their number one priority is respecting the population as a whole, but because it gives them a pass to not change their habits.