How do i find like minded people offline?

Go to your local library, sit in on some college classes, attend lectures and political events, etc. Wine tastings, auctions, and estate sales are great places to meet people.

Thats hard, unless you live in a large city (and are very social) where there's a lot of different organized activities or join a facebook group for people looking to meet new friends and there might be people from your city in there.
You could join a course about those topics and befriend people in your class or make some online friends that don't live super far away so you can occasionally talk offline. It could also be that the people you meet offline talk about shallow things because you haven't reached deeper with them yet and brought up one of your preferred topics.

I'm trying to figure out the same thing. It's really hard to find people you have much in common with. You just have to keep meeting new people. If there are any sorts of groups/clubs/etc. that are centered around stuff you're interested in, those would be good to try as well.

I know there are a couple of friend matching sites that are kind of set up like dating services, but I'm not sure how well they work. Personally, I've never really connected with people online in the same way as I do in person, so I haven't given those much of a try.

You don’t, you are the chosen one and everyone else is a mindless sheep. You’re so much better than us with all the deep topics you like to talk about. Every time you quote Nietzsche at a party, people don’t walk away because you look like a virgin, they just don’t get you, they’re not intelligent enough. You’re the chosen one, the only awake one. You’re like Neo from the Matrix or Joker from Joker.

You’re in the minority, so it’s difficult. You need to join clubs and associate with people of your own caliber and interests.

Try meetup.com.