Indy-a-sexist?
This is a good issue and I've been mulling it over but I can't come to any conclusions.
In Raiders, I've always thought by leaving Marion a prisioner, IJ was treating Marion as an equal and trusting her not to betray him. Would a guy who has no respect for the fairer sex take that risk? . . .or is IJ a guy whose ego is so huge that he assumes that Marion could never betray him? Given the earlier scenes in Cairo, I'm inclined to the former.
Otherwise, I don't think Raiders offers much grist for mill on this issue -- but it would have been interesting to see IJ's reaction when Marion declares herself his partner outside the remains of the Raven. By ending the scene with that word, I think the safe assumption -- from a narrative standpoint -- is that they were partners and equals.
I'm sure ToD and LC offers more debatable content . . . .