Okay, let me tell you a story.
When I was at school, I was the victim of severe physical, and emotional bullying. I went from an A grade student to an F grade student overnight. I was kicked, punched, spat at, called names, everything you can think of. The teachers were aware of the abuse, yet they did nothing at all to prevent it. I couldn't stop it, I had to sit there and take it. I would sit in class and listen to the insults, I would go to my locker at the end of class and be kicked, and kids would randomly slap me as they walked by.
This went on for three years, and nothing had been done in that time. I hated attending school, because I knew that as soon as I got off that bus, I would be beaten and humiliated again.
That drove me to suicide. I tried to end my life twice, but thankfully, I was saved both times. Eventually, the school admitted there was a problem, but instead of expelling the bullies, or even giving them a detention, they told my parents that I should leave school instead. So I left school at the age of 16, halfway through the school year.
I was fine until I was bullied. Being bullied made me depressed. My depression was being treated, but when you endure being bullied 5 days a week, 6 hours a day, medication doesn't do much for you. I blame the bullies for my suicidal thoughts.
Do I blame them for the fact I tried to take my own life? No - as that was my choice. But I had the strength to dig myself out of that dark place, not everyone is so lucky.
Its very easy for someone to say that we should ignore it, walk away, toughen up, etc, but it doesn't work that way.