I say this as someone with decent exposure to Mexican culture for a guero. I read Mexican news, have Mexican family I'm in regular contact with, plan to move there in about 2 years, etc, etc, etc.
But....
The "typical" Mexican opinion on immigration is massively hypocritical. They fucking hate their migration problem from Central America while generally supporting migration to the US by whatever means. Additionally, once a Mexican has arrived in their new homeland (whether there legally or illegally) they immediately want to pull the ladder up behind them if it's not a family member or friend coming across.
"Fuck you, I got mine" is an unfortunately common philosophy.