Really? Out of all the totalitarian despots, cartel gangsters, and evil people this is who you think are the worst. This is the main problem in America right now, a hyper-polarization of political views. Not having empathy with people who have different political views is pretty worrysome.
While I can easily think of more detestable living people than them, I do think that they're reasonably detestable. But I think that based on their business actions -- it has nothing to do with their political views (Trump arguably excepted).