Well, there are a few things to clear up:
1. Latino is an American word that's only useful in the US to summarize people south of the US in Latam. People in Latam don't use the word since that grouping isn't otherwise useful to them.
2. There definitely are Spanish speakers who do use the -x or -@ suffix like "tod@s" and "todxs".
The mass confusion between these two facts is responsible for most of the discourse you'll read about latinx.
Americans don't understand that #2 exists. "Woke" Mexicans, for example, do use the -x suffix.
"Non-woke" Spanish speakers think the -x suffix is dumb in their own language. But they don't represent all Spanish speakers.
