The US and UK sell arms to all of these countries. That's not a good sign; the US even directly subsidizes the military and police of some of them. We like dictatorships that make our political donors money.
I’d argue that we like dictatorships that align with our strategic interests. Raytheon doesn’t really care who we sell arms to, as long as they get sold. The politicians want to back anyone that’ll push back against our mortal enemy <strike>the USSR</strike> Iran.