Latin equis? That sounds like something a stupid white anglo came up with without even thinking about how it would sound in Spanish.
Latinos is already gender neutral. But if you think that's too male oriented at least use something that sounds good, like latines.
Again, fat person here. Being fat is not healthy, physically or mentally. No we shouldn't attack or criticize people for being fat, but acting like being fat is perfectly fine is wrong. BMI might not be a good system, but that doesn't mean the idea behind it isn't.
Fatness is medical. Fatness comes with a host of health problems. To say it's not medical is some anti-science bullshit.