Well, for example, the view that gay marriage should be legal. Until very recently this view was judged very harshly by society. Many people who had this view w

Well, for example, the view that gay marriage should be legal. Until very recently this view was judged very harshly by society. Many people who had this view were afraid to express it. Of those people who today complain about not feeling safe to express their views, some of them may be horrible racist people as you suggest, but others are advanced thinkers who will eventually convince most of us to change our views. That is how and why the morals of society change and evolve with every generation.