What does that have to do with blacks? Why are we always discussing the issues of some other people that hasn't done one thing for blacks or helped us in our fight against white supremacy? Mexicans are more than willing to join in with white supremacy.
A lot of Mexicans are deeply racist individuals (even though a lot of them have some African-heritage as well), and once they get their come-uppance in America they will be just as virulently racist against blacks as the Irish. So let's stop trying to, "kill them with kindness". That doesn't work. Once they start trying to work with us, then we can talk, otherwise, they need to go somewhere else.