Consequences arising from communication outside of work would make you liable to your corporation all of the time. Most of the arguments I see here are people should just know these things they are common sense, and that they have not seen any extreme examples, only things I personally believe are wrong so it's all good. Further some people here have claimed that they would actively work to get people fired that don't share their opinions and their opinions are discriminatory. Though their heart is in the right place, they don't live in the real world where people are raised in religions and cultures which actively promote those ideas. Therefore, they may believe their ideas to be right or generally acceptable. Holding people liable for "correct" ideas in an ever changing democracy is not sane. It's insane, you must be very dogmatic and authoritarian to believe these things just like the people who would work to get gay people fired for being gay, it's the other side of that same coin. It's wrong and I am happy to take all the down votes in order to state that point.
As for assholes being a protected class, it's called right to religious freedom. It's a human right. And many religions teach a lot of things that modern left who would use this sort of tool to power their way into winning. Which then will lead to the right seeking political solutions in the form of their own extreme power grabs.