That's exactly the railing against "political correctness" that got so much attention. "Not PC" is code for "freedom to believe and say hateful things about other groups of people."
No attempt at political correctness will ever impact the freedom to believe anything at all, hateful, loving, or totally rational. That freedom is fundamental to being human. It is not granted by any organization and cannot be revoked using any known mechanism, no matter what your opinion on those thoughts.
We don't need code to believe and express that we are free to say hateful things. Even those on the left believe they are free to say hateful things about people on the right. They've simply fooled themselves into believing that feeling justified about that hate means that they aren't being hateful.
Here's a spoiler alert for being human: everyone feels that exact same justification. It is literally meaningless.