Yes, not to mention that in Stranger in a Strange Land, the female characters literally become interchangeable playthings. We love them for their beauty and warmth and their occasional cheekiness (but not any demonstrable intelligence unless you count random sparks of feminine intuition), but in the end women are all the same.

Really, all these poisonous views leeched their way into nerd subcultures from the broader culture, so he's not entirely to blame, but Heinlein really did pour that poison directly into scifi readers' hearts in a way that I really kinda wish he hadn't done.