The movie Starship Troopers was very Heilein at the end of his space opera phase. I read all of his work as a kid, and most every other SF writers from the golden days of '50s.
As note in one response, Heinlein was labeled as a Libertarian but that is a kind of fascism light. He was a very good writer and did some surprisingly original and innovative plots and colorful characters. He saw machines as a higher order of being than people. People needed their asses kicked regularly and, if they worked hard, they could then kick other people's asses.
Heinlein created a refined from of space opera and war is the highest from of human activity. I can appreciate his skill and plot progression but I'm unable to read most of his books now. He was not a satirist. He would have never written a line such as 'if you don't fight , you don't vote' because that was completely understood.