TBH, I'm more concerned about League of Legends players. I have friends who have sunk into recluse for the last few years and only socialize through LoL.
But yeah, I mean...everyone has their obsessions, right. Some people are that way about cars, games or music. Anime is just weirder than most of the alternatives. Doesn't help that America has a pretty skewed image of Japanese culture. Either people love it to pieces or genuinely hate the whale-poaching, panty-sniffing Japanese.
(because eating whales is wrong but artificially fertilizing farm animals, forcing them to give birth and eating their young is not)