It's not justification, it's just how they developed.
It turns those who are victims of rascism to fighting to protect themselves and then overtime into gangsters
If this is the way things naturally develop, then of course gangsters can use this as an excuse to justify being a gangster.
Offend a small group of native Europeans. Why should the bigot minority be catered to when most people don't have a problem?
So what if it is only a minority of European people?
How could you say that this minority of European people shouldn't be catered for?
If an black knocks on your door asking if he could live in your house for the rest of his life and you and your kids agree, but your wife is strongly opposed, you still welcome this guy because your wife is just a "bigot minority" for not welcoming this guest?