I'm not surprised you didn't take me up on that challenge - I've made the same challenge to conservatives quite a few times before. Only one has ever taken me up on the challenge...and he of course lost - not that he admitted his loss, of course, but he lost nonetheless. But you're intelligent enough to know that when I say I can show so many more examples of race-baiting and racism by the right than you can of the left, I'm making no idle boast.
And no, the word "illegal" need not be included in front of "immigrants". Get to know someone who came here as a nonwhite immigrant sometime and ask them if they experience racism even though they've been American citizens for many years. Got an example for you - a couple months ago, a state inspector came to our Adult Family Home to investigate a matter. She looked at my sister-in-law and asked, "Does she have her green card?" It never occurred to her that my sister-in-law might be a citizen...and she has been for over twenty years. Would that state inspector have made the same assumption if my sister-in-law had been white? I think you know the answer to that one.