Bullying is bad, just like Sexual Harassment is bad.
The problem is, as
@StraightShooter pointed out, the assorted special snowflakes of the last couple decades have expanded the definition of both to encompass any behavior at all that doesn't validate their feelings regardless of context.
Calling someone a name once because they're sperging out next to you while you are trying to work isn't bullying, and anyone who collapses into a coma upon having it happen to them is way too fragile or immature and needs psych help.
Repeatedly calling someone a name, day after day after day, and specifically targeting them after they've taken reasonable steps to stay away from you and make it clear they just want to be left alone? Following them to places they went just to stay clear of you? That is bullying and someone who breaks down under that kind of pressure is not a wuss, or pansy or too much of a sperg, that's a normal human reaction to being victimized for no good reason.
But much like how every false rape accusation hurts every real one, every SJW who cries bullying over the "oppressive" color of someone's shirt or the way some guy is "manspreading" next to them hurts the case of people who have been bullied because they get painted with the same brush: "Toughen up"
I was mildly bullied in High School and find it almost impossible to add my two cents to any discussion about the pros/cons of bullying because I find myself buried under a ton of that same "You must have been doing something to deserve it" thinking, and it's just not worth the fight to plea my case wasn't me being a crybaby, but genuine bullying. (As in the bullies were walking into class from the hallway just to smack me in the back of the head, and walk out laughing. Or to dump soda on my classwork, WHILE I was working on it, and the teacher who saw it all said it was my fault, I was encouraging it by having a "thin skin" )
FWIW, Bullying didn't destroy me as a person, but, considering I have a lot of problems socializing to this day, I can tell you, it didn't HELP either, so I don't know what reality the "Everyone needs to be bullied to grow a little character" people who think it's a good thing are living in, and I'll leave it at that.
College isn't for everyone, and neither is getting bullied. Some people were forced to grow up fast because one or more of their parents died young, that doesn't mean such a scenario is de facto good, and we should be wishing it upon others, because it could also just as easily wreck you.