Well, aside from the fact that she's not even aware of that sub-culture, she wouldn't have any problems with the sensible parts of it. A portion of it I don't even agree with.
I've voiced my opinions in favor of the red pill view regarding many topics, my GF agrees on most of it. So no further response needed, lol.
I would also never consider myself a part of the "red pill crew", as I have my own combination of opinions and will never 100% agree to the common opinions of any group of people. The problem with basically pigeonholing yourself is that people instantly judge you and think you hold opinions common in a particular group, which you don't necessarily agree with, instead of listening to what you as an individual think.