I’m sorry, but I feel like people who do that are idiots. Because you know what? Every fandom will have fans you seriously don’t like. But you’re okay with that group, why? Because their fans aren’t open the same way other fans are? Just because they don’t announce it, doesn’t mean they’re not bat shit crazy like the rest of us inside.
Liking a group should be about the talent and the group itself, not the fans. Get your shit together.