The thing is though, in Spanish, the masculine form of a noun already also takes the duty of neuter form. E.g. “Latinos” already refers to a general group of people, regardless of gender. It doesn’t mean a group of only men.
It doesn't matter to these sorts of people. "Guys" is similarily in generic use in English and I've seen mods of an ostensibly inclusive space immediately get on the case of a newcomer who just said "hey guys" as a greeting on arriving to a Discord server.