Political Correctness is a form of repression and the harder you try and keep people in their little boxes the more they will rebel.
Radical elements like Anders Behring Breivik put into action what many people think but can’t debate because it’s racist (or something else-ist).
Where there is something to rebel against there will be a small number of nutters prepared to go to extreme lengths.
It’s not racist to consider unmanaged immigration wrong. It’s not racist to want to retain your own culture while allowing others to retain theirs. And it’s not racist to state that IMHO multi-culturalism doesn’t work, will never work unless it happens in an evolutionary manner and it’s insulting to have it rammed down my throat.
That said, I’m not gonna go off shooting anyone! I’ve just stirred the pot a bit – what do you think?