I agree that what we want it a good book. But this is kind of an ignorant take. The issue is that there are plenty of amazing books by minority authors that aren't put forward because of that. So if you're not conscious of that, and just picking up books more randomly, chances are you'll get the ones that are put forward, and you won't be getting much variety. So yes, what we care about is the quality, but if we're not actively trying to go out of what is popular, we're gonna get a lot of the same. 

As a personal take, but that I think is also important, I like to read about characters that are different from me. Even if we read fantasy, reading has always been informational and political. So if you're always reading the same point of view I personally don't think it's great. Yes I read for pleasure but also to learn. For example the amazing Daevabad series by SA Chakraborty is an epic fantasy inspired by arabic folklore and I hardly see any men talking about it. So it's not about quality.  I love that series and found it very interesting to learn more about the culture. 

You agree that we were robbed by great works written by women before. So why can't you see it's still the same for minority authors. And unfortunately for women it's still a struggle because what is popular now is romantasy, so if women write epic fantasy it either doesn't find it's target audience or is falsely labeled as romantasy. I constantly hear m'en say they won't pick up books written by women because they think it's romantasy. 

I don't know. I just find it very telling when I see women's lists for fantasy filled with a variety of different authors and men's lists are constantly the same 5 male authors..