I think the Beth crew are secretly conservative or at least right of center by and large. All their games have bad outcomes for liberal choices. Granted, thats reality based logic but in an ever increasingly liberal game environment (real world) they don’t make many left of center decisions.
They do have teh gayz and some other stuff but it isn’t in your face. It just mirrors real world stuff rather than push agendas.
The games heavily encourage you to do things your own way, especially New Vegas (which doesn’t have essential NPCs and has tons of faction creeds). Contrast this to the Bioware games, which consist of nothing other than boring dialogue about what a special snowflake each character is and how all the races need to unite against the evil robots (individualism is punished in a Bioware world if it is constructive, but rewarded if it’s destructive). Mass Effect 3 changed a character from straight to sodomite for no reason at all, and it has a pilot who whines about his husband (and who you can’t even berate).