You and I are fine because for the most part we are liberals. But what if Katy gets an abortion and works as a teaching assistant at a Catholic school? Parents and other teachers may see this as potentially 'harmful' to their students. I'd say that's a case for unfair dismissal, I'm not convinced the admissabilty of things in Katy's private life can lead directly to her being fired.

Employees are indeed allowed to disagree with each other - but are they allowed to get each other fired? Where does the statute of limitations stop on bad behaviour. If you and I are working in the QJ Towers of Justice and I find a ten year old joke with a hint of misogny thrown in, can I ask for you to be fired? If not, can I whip up enough support to get you fired? We're miles away from the Cooper/Cooper showdown here but testing the limits of where it might lead.

I guess my point is define 'impact' in the modern age, where every social interaction is indicative of trauma. Do I have to prove trauma and impact? Or can I just assert it?

Teaching in an abusive way would constitute a breach of the terms of employment. It's a work problem. Sitting at home and writing 'I wish straight white men are dead' isn't the same as breaking the terms of your employment. The teacher might go home and say... 'I fucking hate white kids, I want to teach slavery by punching their smug little colonnial faces once a minute' - but unless he/she actually engages in this form of abusive teaching, that's a private view made in their private life and covered under freedom of expression - even if it's massively unpleasant and not held by other people.

And the answer to the last question is yes. Somewhat controversially. Not because I want my white male employees dead but because a variation of that particular question is so easily used in the hands of the KKK, the Nazis, Joseph Stalin, Senator McCarthy et al as a way of punch minority groups on spurious charges. I don't believe you can punish people for a crime they haven't committed yet. You can just watch them very very closely. It's a fine line. There will always be calls to remove liberties in cases where you don't watch closely enough, but I think sometimes the cure is worse than the illness.