This only happens in first world countries where people take things for granted and are used to get medical service, food and basic needs without making any real effort.
Those ungrateful fvcks don't realize their ancestors really really had to fight, and struggle to build a solid nation. They don't realize not everyone is the same and that genetic (thus intellectual) and cultural differences are just too big.
But, but.. "we all bleed red." (Yes, mammals bleed red.)
"They are human beings." (That's great. Poodles and German Shepherds are both dogs.)
"We are all the same. The only difference is skin color." (Yeah, sure.

"What does it matter to your race dies?"
"They make good food." (Yeah, Europe and America are certainly lacking culinary diversity. Here in NYC alone I can only get Italian, Polish, German, Balkan, Greek, Czech, Romanian, Russian, Ukrainian, Russian, and Scandinavian, and French.)
"Life would be so boring if we were all the same." (Actually life is fine without them and their crime, laziness, stupidity, noisiness, violence, and so forth. I'll actually be able to send my kid to school without having to worry about safety or having class material dumbed down the lowest common denominator.)
"Wait a minute, I know a black/brown/Arab/Indian/Korean who is smarter/richer/better than you." (That's great. I still don't care.)
"I have a black friend." (Why aren't you ever with him/her? When are you going to introduce me?)
Multiculturalism is great!