I've known (and know) a lot of either lesbians or girls who engage sexually with other girls and although I certainly don't discuss the ins and outs and everything else with all of them I can say that although not all of them use toys and not all even like penetrative sex I don't know any who reject dildos because of the male connection or as a statement against the patriarchy.
The more militant I've known were more likely to make jokes about it being the only worthwhile part of a male, objectionable in theory but personally generous so I didn't object.
I like these sorts of threads so I'm going to make myself fully available to research girl on girl dildo action for the benefit of expanding the cultural knowledge of GOT.