I'm with @Anwar . It's been some years since I've frequented the CBR message boards, but some of the X-Men fans there represent the "very finest" the internet has to offer if you know what I mean. Lunatics, trolls, you name it.
There are always extreme voices out there, but they're usually a minority, even though they make a disproportionate amount of noise.
Speaking for myself, I think the idea that enjoying the X-Men requires hating the Inhumans or vice-versa is totally ridiculous. Why can't we enjoy both? Having good X-Men stories and good Inhumans stories at the same time would be great. The more good stories we get, the better. There have been both good and bad X-Men stories on film. There have been good Inhumans stories on Agents of SHIELD. But so far, the Inhumans TV series is not shaping up to be a good story -- at best, it may be a mediocre and flawed one.