I believe bullying will be around until man can learn to accept all people no matter where they come from, what path they walk or have walked.
Society mandates too many vain, petty, ignorant, irrational and insignificant rules. These rules adversely affect people causing a variety of insecurities, some of which can manifest as cruelty in one form or another.
Bullying will also continue to plague this society as long as you have those who grow up to utter things like, "they're just kids," or "they'll grow out of it," or "I was bullied, and I survived," ... etc., etc., etc., and then turn the other way. Or worse, they've grown up, still bullies, and pass that behavior on to their own children.
Bullying will continue to plague this society as long as there are parents and other adults from all corners of society who do not condemn the behavior, and teach future generations that differences are natural and normal, and that no one is a lesser being than another.
It's sad that we can all relate to being bullied....