I'd say I belong to one of the most despised fandoms, the Hetalia fandom.
What I don't understand is why people get so mad at other people for liking something. As long as they're not all "AWWWWWWWMAHGWADDDD THIS IS THE BEST EVERYONE WATCH IT /HAS NO LIFE" or getting all crazy for someone not liking something, what gives the other group, the non-fandom, the right to hate?
I think people just invest far too much time in wasting their lives hating things in the hope it makes some major difference. Eg, music taste, games, anime. Wow it's no big deal.
I like Hetalia and so do other people - so I talk to those people about it, a common interest. Otherwise, I keep it mostly to myself.
I'm not going to bother with someone that dislikes it, that is their opinion and I'm not here to convince them. If they have seen it, dislike it, then that is their choice. Man, this is almost sounding like forced religion, but, you get my point.
Just let people like what they like, wow.
Everyone should just calm down, on both sides, and stop raging/hating at eachother, it's so immature.
Also you do not hate everyone just for liking a show, and nor do you hate them for not liking it. People are often thrown in with the weird fandom obsessioners and that's really annoying, people aren't always like that.