Another thing that comes up to me right now is that going out of your way to say LatinOH! and LatinAH! comes across as a way to create and experience that migrant identity in an anglophone country. Latinos in the US are, frankly, basically Americans in most ways that count. Especially the second gen ones. But being LatinOH! rather than Latinx is one way of living the fact that your parents and grandparents are from Guatemala.
That may have cultural value in itself and might respond to some resistance you'll see.