A Challenge

It has been suggested that it's not fair for me to discount anti-immigrationists as racists:
I don’t really have an answer to this question.  But I think that it is foolish to act as if all those who favor closed borders are all closeted racists who will sell out property rights so as not to live near filthy foreigners is perhaps a bit uncalled for.
I wonder if those who make this claim will also agree that calling open borders advocates "intellectually dishonest pricks" or anti-American is also equally unreasonable. Or how about the claim that we are anti-white racists?

What do you say?