They don’t even question systemic problems within the magic world, let alone challenging them. Everyone is extremely content with the social stratification - something emblematic of the British society. In the books everyone is perfectly content with the oppression, just as long as THEY get to be the oppressors.
I was never a fan of the series - noticed these issues right from the first book. Every subsequent book or movie I couldn’t help but noticing how cruel everyone was - even the protagonists.
But can I ask why that would put you off the series? The books are essentially a product of the society the author wrote them in, so it’s not as if they present an unbelievable social narrative, as it’s emblematic of British society as you said. Is it that you want/expect more of an engaged society from the magical world, or is it just boring to read of social attitudes that are so close to our own. Genuinely curious, as I’m not a massive fan of the series myself, but for other reasons :) I’ve never considered your point of view so it’d be good to understand