Typically, if you want friends (normal friends, not musician-friends), play down your involvement with classical music. I can certainly relate to you when others ask "what's your favorite band" or 'What snowboarding company is the coolest" or "who's your favorite 'Friend's' character"..
To the pop culture stuff, I dont have an answer because I have been living under a rock all these years.
To the music one, I say "I like all good music." I learned this indirectly through my music teacher, when I asked him who his favorite composer was. Just say "I like all good music" and no one hates you. Say you like classical, and yes, their ignorance will make them hate and shun you. If they ask you specifically "Oh yeah? Do you like ______?" say YES, no matter what. Obviously they like whatever it is they bring into the conversation. Hopefully, you will know something about ______ and can talk about it with them for a while - long enough to change the subject, that is.
This is what you do if you want lots of friends, and if you want to get laid. If you only want good friends that relate to you, never lie. But you might have to wait a while, and during this time, you might forget how to talk to people. and then you dont meet anyone.
whatever you do, do NOT try to change people, or push your own interests on them, even if they do it to you. (thinking about techniques in "talking to my grandmother when she starts preaching")
however,
if they are immigrants from Asia or Europe, you can be frank with these people because unlike your peers, they have seen the world. They typically know the term "Classical music" extends beyond Fur Elise, and will be pleasantly surprised to meet a local with differing tastes from what they have come across. I love talking to lonely, fresh immigrants because like me, they dont know a *** thing about the people around them.
Just my experience, anyway. And I have had to talk to a lot of stupid people in my short life.