That's a tough question and one I have been grappling with heavily myself. I used to until very recently own a small construction company in Washington. Washington is a state that has been getting a lot of immigration from other states since legalizing weed, many of the people who are moving have a fair bit of money and have been building houses for the last few years.
This is a market I have done quite well in. Over the last year working about 9 months out of this year I have brought in roughly 100k after taxes while paying 10 employees wages averaging about 20 an hour. Cost of living around here is extremely low so those numbers here go much further than other places. Within about a day of trump releasing his pick for attorney general I got a call from my two biggest customers for next year. One was building a 6500 square foot house on lake front property which would have been a million dollar job, the other job was a 4000 sq foot house with a 1200 square foot shop with an in law apartment on the second floor just out of town. That would have been another 800,000. Both of them cancelled, both of them were moving to Washington and building houses because they enjoy smoking weed and it's a big part of their life. I just had to layoff 10 employees over that and I'm not the only one that will end up losing big customers because of this. Mean while I see the buffoon responsible parading across the country acting like he is some gift from god because he saved a few hundred jobs one time after a lifetime of destroying peoples livelihoods so the prick could make a buck.
Some people have a damn good reason to be salty about him being elected. While I personally would not go as far as your dad, depending on how badly it affects him he may well be justified.