It sounds like you're not treating foreign language speakers as members of your society, so when they say violent or politically abhorrent things, you don't get worked up about it because they're not plausible threats. They're part of a different community, they're someone else's problem.

Regarding music, I certainly find I can accept mindless bubblegum pop a lot better if it's in Japanese than in my native English. That might be a different phenomenon though.