They should. But thanks to a litigious society and some poorly defined laws you have to be careful how you inform them you don’t want anything to do with them. There are certain word and phrases you can’t use, any sentence that starts with “because you’re” is high on that list because the next words are almost certainly going to tie to a protected minority (even “overbearing asshat”, could be the result of a mental condition, can’t discriminate against the insane). Nothing new about this, it’s why in right to work states where you can fire someone for “cause” you ALWAYS do, never list a reason that could be challenged in court. It’s a messed up system out there and the path to survival is to know the dance and never deviate.
In Texas you don’t need to cite a reason for letting someone go, its better not to
It is very easy to pick a quarrel and claim offense first.
One of my favorite novels has a scene in a nightclub in Europe, where the protagonist challenges a complete stranger to a duel (for an ulterior motive), claiming that he offended the protagonist’s aunt. The stranger, amazed, says, “what are you talking about - all I said is that the woman singing with the orchestra has a great voice.” The protagonist replies: “Everyone knows that my aunt has a terrible voice - that was a direct insult to her” - and forces the duel.