But that’s the point: it’s not needed in Spanish either. Spanish speakers are totally fine without new inventions like “latinx”. They see those strange American people, who usually don’t even speak Spanish, try to impose their own new norms on what the Latinos should be called, and they don’t like this kind of cultural imperialism.
The whole problem stems to a large degree from lack of understanding the English speakers have for gendered languages. English is, with few exceptions, not gendered. The exceptions are rare enough that people who care can try to lobby for using gender neutral terms, like they are used for almost everything else. This is often against established language patterns, but since English is, in general, not gendered, it doesn’t seem all that out of place.
That’s not how gendered languages works. In gendered languages, everything had a gender. In Spanish, chair is female, and desk is male. When you use an adjective, you need to use it in an appropriate gendered form to match the gender of the noun. Spanish speakers are completely used to it, and don’t see this as anything special or in need of rectification: that’s just how their language works. External efforts to make some specific words gender neutral are just strange and foreign to them.