Why the heck do Mexicans get priority? I would MUCH prefer some people from a part of the world which appreciates the U.S., and where they don't have an entitlement mentality. I hear Poland is one such place.
They should not. The limits on legal European immigration should be lifted, as well. Anybody who wants to come here and integrate into our society should have a chance at the spaces that we have available. And there should be a lot of spaces.
The problem is when you accept the people without making the spaces available. Then you have a sub-class of people that is criminal by definition. The people themselves are illegal. Such a person has little or no incentive to take on the responsibilities of citizenship.