> A protected class is what we decide should be one. There weren't any protected classes at all, until one day there were, and we added things to that list since then.

Yes, we advanced to being a more civilized society.

Adding "politics" to the list of protected classes is akin to removing all the other ones, since someone's "idea" can be that their race/sex/age/nationality makes them superior to all others.

I'd never support a politician who promoted the idea of rolling back Title VII of the Civil Rights Act.

> Adding "politics" to the list of protected classes is akin to removing all the other ones, since someone's "idea" can be that their race/sex/age/nationality makes them superior to all others.

Not at all. Adding the expression of some idea to the protected list does not, in any way, limit protection for other things on that list. It's the implementation of those ideas that would be a reversal.

So if an anti-abortion doctor wants to go work at an abortion clinic and express his or her views in the workplace, then you feel he or she shouldn't be allowed to be fired for expressing those views? Surely that would impact the business.

What if a nazi wants to go work with a black rights group? Or a male sexist wants to work in a women's shelter?

Adding politics to the list of protected classes would be the end of protected classes.

The whitelist is the problem (because it's white of course), so make it a blacklist instead.