How is the world now so filled with people who are afraid of ideas? Have you run out of real problems to worry about? Or are you just too young and naive to realize that ideas aren't simply good and evil and that, alone, they don't cause people to do things? Nazism, for instance, came about because the people were being oppressed as a result of losing WWI and it was a rebellion against that oppression. It wouldn't work without the oppression. The idea itself is not the problem.