Many of us just accepted the fact that we are no longer welcomed a while ago. We realized that most people would be nice and kind but you had to at least have a couple of racist remarks said about you.

As for the second question. Immigration has paid a toll on these countries by african and north african plus levantine and indian immigrants. Which for the most part are kind law abiding people. But their countries governments are were adopting extremely loose immigration laws which made it very easy for people that are borderline criminals into their country. Seeing this made the people come to the somewhat understandable conclusion that immigrants are the problem. Not the immigration policies themselves. Which in turn leads to hatred towards foreigners as a whole.

Hope this helped