I'm sure I've seen Card express pro-immigration sentiments, as well as love for the Brazilian culture where once served as missionary. Also, his books have plenty of non-Americans portrayed as heroes. I strongly disagree with some of Card's opinions, but may I ask what you are referring to when you say he is xenophobic?
He has Op-Ed materials for Morman websites that show increasing levels of homophobia and, IIRC, racism over the years. Plus some of his later writings (such as his story for Doug Chiang's Robota) seem to display a misogynistic bent.
It's a pity, because his older books and his introduction to the anniversary edition of Ender's Game appear to come from a very compassionate and level-headed man; one of the jacket blurbs on Speaker (I think it was) referred to him as an author whose "heart bleeds" for the suffering of humanity. Nevertheless, he's a very outspoken bigot in other venues.