That's not really right.
It's easiest to have friends but there are a dozen sites. They open registrations from time to time. If you want to get into X but only Y has open registrations, visit Y, seed and/or leech and you'll build up reputation. That'll make it easier to get into the next tracker. It's not done within a day but you can get into each tracker within a couple of weeks. If you own a seedbox, you will have a very easy life.
Only private trackers. I don't know why there aren't any exile Germans torrenting but there is barely anything. Private trackers are better for storing and sharing content anyway.