There's some resentment, but since it doesn't have a religious factor, I'm inclined to believe it's less than that expressed toward them by European conservatives and nationalists. It can vary, though; there are still very nasty, xenophobic individuals despite the similarity in religious beliefs.
I don't know if there are many South Sudanese immigrants - these would presumably come up against more problems, what with being a) Christian and b) black? I say the second only because I have heard there is substantial racism towards such dark-skinned people in that area of the world.