I've seen some pretty racist latino's and Latino's have met and deal with some pretty racist Latinos. A lot of it is skin color and machismo. I'd put the % about 25-30% on average.
Overall I think Trump won in 2016 because he got voters who were pissed off at Hillary, not because he got more latinos.
I may be wrong but I also see how the GOP treats AOC becoming more of a problem for them, how they mock her at every turn.
AOC is the future, not Trump.. imo.
That's generally my observation based on Trumpies I've heard talk about it.
"Hillary is sooooo dishonest!" "You get those Clintons into the White House -- there'll be more corruption than you can believe!" "I didn't like Hillary, so I voted for Trump."
This derives from an attitude that government is like a smorgasbord, and you should have a smorgasbord of choices. "I'd like a lot more defense spending, a lot less food stamps -- give me some environmental de-regulation on the side -- I need a bigger farm subsidy." As if any single candidate will reflect a particular smorgasbord preference. And if you have to choose between Satan-Beelzebub and a woman tainted by National Inquirer shit or even a dirty asshole sandwich -- pick Satan-Beelzebub.
Some people should try serving on a condominium board or other volunteer democratic body. Most of the voting can be routine unanimity. And the reason this is so comes from the fact that everybody wants the common-sense and prudent solution, unless there are two or three of them. In that case, the matter is debated; the best solution always gets a landslide majority. They don't vote and take a position just so they can win.
The cable-TV, the internet, social media -- they have all contributed to information overload for at least some part of the population. A culture of narcissism contributes to people thinking they always get great choices to pick from, or that those choices are somehow part of a smorgasbord.
The Founders originally didn't want people like that 40% to have a significant democratic influence. All the reforms giving people more participation and a chance at "choices" occurred long after the Constitutional Convention.