My views have also been shifting a bit recently on immigration. I used to be solely against illegal immigration, but now I am starting to move in the direction of advocating for the stoppage of all immigration both legal and illegal.
I think at some point we have to start to worry about running out of resources and protecting what we have left for our children and their children.
If the 3rd world wants to breed like cockroaches... that's their business, and they will pay the price in famine, starvation and overpopulation, but DON'T let them come here and use up our remaining resources that we should be protecting for the use of our children and grandchildren.