In my personal experience the US military is only slightly rightwing, most people just want to smoke weed, play videogames, and look for girls offbase, or spend time with their family depending on their age. I don't think people in really care what you do outside of work as long as it doesn't impact them or your performance during work. There is a odd sexual aspect because of the diversity initiatives and the anti-sexual harassment program, where people are somehow suppose to fit transgenders and women who are trigger happy to go report someone for rape are suppose to fit into a masculine environment. I only ever met one soldier who told me they were transgender and one soldier who was bisexual. I was openly a Trump Supporter, and never got push back except a little bit by people who were apolitical as far as I could tell. I'd guess there is roughly three attitudes in the military, 1. People who just want to serve their contract, and find something less stressful to do. 2. People who want to go on a combat deployment. 3. People who just want to survive to retirement.