great. I'm not sure I asked your opinion on the matter.
> no one got fired for calling someone a princess
I said "shamed/fired", and we're talking about HR, who are generally there to protect the company from disrepute, including firing people. The US is well know for liberal and at-will termination.
> Some people can collect their paychecks without having to be offended
That isn't the point - I'm calling into question your narrative: 'If you can choose jobs for their "coolness" factor', you are suggesting there are people who cannot choose their jobs for 'coolness', because there are more important things they are choosing for that reduce the number of jobs available to them; I am suggesting "being called a princess" is as superficial as "coolness".
> if they have a fucking swatiska
This is a tangent isn't it? The point is, those words aren't always consistent as attitudes on what is 'professional' change, and have changed, over time.
What constitutes 'unprofessional' is a matter of opinion, you are flipping this around to suggest that if something (might be) considered unprofessional,. I should not so it - but if everyone did this nothing would change. TLDR; calling something professional etc is an appeal to (supposed) popular opinion, not an argument.