"Latinx" also proves that the motivation is grounded in bad faith, for if someone were truly offended by the gendered term "Latino", they would surely use "Latin" instead of creating an ostentatious monstrosity that is totally alien to both English and Spanish.
Or, like the people who came up with :-), lmfao, wtf, l33t, pwned!!!111!1 and similar internet shortcuts, they were communicating in a text only medium and didn't need to worry about pronunciation?