"Targets of bullying don't know how to defend themselves"
It's up to parents and schools to teach kids all the skills of self-defence. It's no good them blaming other people or pretending that the problem doesn't exist. Problems like bullying are solved by identifying and dealing with the cause - the bully, their parents and the entire background of bullying. A quick 5 minute chat doesn't cut it.
"Bullying is part of life - you've just got to accept it"
Harassment, discrimination, racism, domestic violence, sexual abuse and murder are all part of life too- we don't accept these!
"Bullying toughens you up"
Bullying causes physical and emotional injury and distress. If u don't catch bullying early, it can cause life-long mental (psychological) scars and even lead to suicide. The human mind is a fragile organism, not a manky piece of shoe leather.