Unless we manage to create a parallel universe where the 11-15 million illegal immigrants are Canadian instead of Mexican, to test against, I don't think you can definitively state that support for enforcement of immigration law constitutes racism.

I don't think a person who's construction job was taken away by an under-the-table worker really cares what color the other person's skin is, the milk and bread he can't afford now leaves the same hole in his pantry.

Same thing for software development offshoring - is it racist for those out-of-work Disney engineers to want their jobs back?