That sounds like a really good back history, a mix of a bunch of different takes on the fae in modern literature. And it means that there is unrest in the humans in how they deal with the fae as well as within the fae about how they deal with the humans. I bet there are some wanting to conquer and rule, others who want nothing to do with the mortals, etc. The sidhe could still be the 'high/noble' race, the ones that interact with the humans the most perhaps? The Fair Folk pretty much.