Why am I bullied so much!?

The only reason I can see for me being bullied is that I'm German. Ok so these think it's ok to push someone around. I get called a nazi on a daily basis and not a single adult seems to care! I'm a nice guy I don't go looking for fights, in fact I try to avoid them and try to stop others. On a daily basis I say Liebe ist fur alle da, yes I know that Rammstein has an album named that but I started saying this around 2007 before the album came out. Well i'm quite flustered by these belligerent people I don't know how to solve this problem.