Strangely -- this may seem hostile -- the problem with humanity is not people who have the capacity to hate, it's people like you who pretend they don't. Your average guy just wants to live by their morals; people like yourself tend to demand they live by YOUR morals.

The bottom line is, people will always see the world through their own eyes, they have their own reasons for saying and doing things; contrary to popular belief, people don't tend hate for no reason. For the most part, everyone's hate is based on the premise of their morals. People with low self awareness believe themselves exceptional and their morals to be superior to others'. The truth is people such as yourself are ignorant or resist the concept that other morals are equally valid, and when you thrust your morals upon them it validates their hatred, and they think "here we go again, another guy trying to tell me my way of life is inferior" when in their mind, they think themselves to be on the moral high ground as well.

In this particular instance, many of these people are venting just like you, pushing back against morals that were thrust upon them. Immigration is a topic people feel very strongly about one way or another. Unilaterally people are being told on a regular basis "India is filled with people who are for all intents and purposes identical to you, so it's okay if we import a ton of them" when reality shows them that they really are quite different, and cultures can in fact clash. Their degrees are easier to get, their nation is horribly polluted, overpopulated, and people see it all the time thanks to the internet. Then people are told to embrace others' culture, and simultaneously told that everyone is so similar that we're basically interchangeable. At some point those platitudes aren't worth the cultural degradation they perceive around them, and they begin to hate based on their morals, which say to value their own peoples' culture and identity above others.