If we allowed nudity on TV we would all start acting like Europeans. Ugghh.
Seriously, violence is a big part of life and is necessary for survival. It is a very useful tool for tellnig the story of good vs. evil.
Nudity on TV or in movies does one thing, promotes lust.
You see boobies, you feel lust. If you didn't you wouldn't really care about seeing them so it would be a non-issue.
Watching violence does not necesarily make you feel violent, but nudity makes you feel lustful.
Lust is one of the 7 deadly sins, violence is not.