Glory Road is a strange Heinlein novel---there are some elements in it that, more pronounced, would make his later novels all but unreadable, but briefer here and more entertaining. This also has to be one of the first novels that melds sword-and-sorcery fantasy with science fiction, and pretty successfully at that. Still, a strange one.
As for the right wing stuff, yes his occasional patriotism-on-the-sleeve diatribes are here, but he also seems to be against what would soon be called the Vietnam war.
Well, it's not so much the patriotism that gets to me as the anti-tax and anti-Government stance, which I think is quite pronounced. If you hadn't noticed it, it must have slipped past you, as it was intended to.
MG
Oh, I noticed. And I don't really mind it too much as long as he doesn't lecture about it too much. But the later the Heinlein book, generally, the longer the lectures, until it becomes insufferable. I think it started getting bad with The Moon Is A Harsh Mistress, although I have to admit I never read Farnham's Freehold. Another thing I don't care for is the adolescent approach to love and sex. Maybe this was considered progressive in someone of Heinlein's generation, but it just seems embarrassing now. The main female character in Glory Road is one of the first on a long line of Heinlein "characters" who are really just male wish-fulfillment wet-dreams. Might seem cool to a 13-year old reader but hey, Heinlein was, what, in his mid-fifties when he wrote this? Grow up, Bob.