Generalizations are useful, because they allow us to efficiently reason about the world. Eschewing them because of the content-free statement that "everyone is unique" leads us to a worse, not better, situation. Of course, this does not mean we should allow blatant racism, but in the real world it is useful to say things that are true but not necessarily nice.

Or, if you want, you can stay in Katie-land:

https://youtu.be/b47wP_yMCf4