It only become unmanageable and builds up resentment. Anyway, maybe its a phase. Sometimes I wonder if the openly racist European&Asians ways are healthier since it starts with unpleasant honesty and then comes the adjustment as people of different ethnic and cultural background come to understand each other and learn how to live together.
I was minority in the country I was born and I'm immigrant/expat everywhere and I'm very familiar with racism and discrimination. The worst is the hidden one, I'm completely fine with racist people say their things, its very useful for avoiding them. The institutional racism is easy to overcome by winning the hearts of the non-racists, for every racist there are 9 fair and welcoming people out there who are interested in other cultures and want to see people treated fairly and you end up befriending them and learn from them and adapt to their ways when preserving things important to you. This keyword banning and fake smiles makes everything harder and people are freaking out when you try to discuss cultural stuff like something you do in your household that is different from what is the norm in this locality because they are afraid to say something wrong. This stuff seriously degrades the society. It's almost as if Americans want to skip the part of understanding and adaptation of people from different backgrounds by banning words and smiling all the time.