This is going to be counterintuitive. Democratic bosses and Republican bosses. The people I'm about to describe were very open about their politics of that there was no doubt. Now you would expect a Democratic boss to be very pro-the worker but......Many years back I worked under a Democratic head chef very anti-Trump and very pro-Hillary. We're not talking the restaurant scene here either which can be highly stressful by its very nature but food markets. This man however despite his politics was universally disliked by the workers under him. Numerous complaints to HR. Unfair to the workers. Made a woman cry once. FF to now and the current head chef an avowed and hardcore Democrat is similar. Both taskmasters. You already have a lot on your plate and here's a few more scoops. Current chef hard to have a rational discussion with. Guy at work had cancer since passed away but at the time Chef became impatient because he was out a lot because the doctors were trying to get a handle on it. On the other hand I've had Republican bosses who were nice and fair-minded. Few years back when my father passed away the young head chef at the time a pro-Trump Republican said if there's anything we can do and take as much time as you need. Very family oriented. Said the same thing to another co-worker whose Dad had passed sometime before mine. I thought the Trumpublicans were supposed to be horrible people.
All this is highly anecdotal on my part and I'm leaving the broad brush aside. Studies have been done showing a fairly high percentage of bosses are mentally ill in the first place and this cuts across party lines so there can be many explanations. What stands out in my own personal life experience though is how counterintuitive political affiliation can be when it comes to bosses in the workplace and what you would expect. I welcome your anecdotes.