I'm glad that you enjoy that, and its great for you. I'm not sure why that should dissuade anyone else from choosing not participate in the ritual of fandom in the particular professional sports that are widely popular, or why the fact that you enjoy it should make it "troubling" that other people choose not to engage with it.
> I just want everyone to be friends. Is that so hard to ask?
No, it is easy to ask anything. It is also unreasonable. Friendship, if it is to be meaningful, is a positive commitment of time and resources. Everyone can't be friends without robbing the term of all meaning, because there are too many people.