Again the issue is the wall, it's bigotry on display. If Obama tried putting up a naval blockade or a wall along Florida's coast I would be calling him and anyone that supported that a bigot as well.
The 'Wall' is just a thing. More symbolic than anything. Something is illegal or it's not, we have gotten to the point where we judge a political figures bigotry on his willingness or energy to enforce the law. Trump has chosen border security as one of his campaign issues and now he is acting on it. That's pretty much the end of the story. The idea that he is the biggest racist since Hitler is blown way out of proportion.
Why doesn't anyone step up and protest how poorly we treat our vets? we have a lot of other issues in this country that should come before our concern to protect someone who is essentially breaking the law. And I have no problem with anyone that does break the law, and comes and works or becomes legal or whatever, I have some dear friends who have done that, but I can't complain that a law exists.