We tried rallying this before and it didn't work; people simply don't care about children. Working it from the gay angle or the black angle is the best chance we have of finding bullies, charging them with very serious federal crimes, and having them permanently locked away in federal prisons until they are killed by the other inmates. If you just want to protect children in general, then you only get support from people who can relate to that situation - parents with children who are bullied or parents who were bullied themselves. If we go at it from the black angle, we can get anti-bully support from black people who were never bullied and black people who don't even have kids. Instead of labeling bullies as predators against children, we label them as predators against black people. Not just black children, but all black people. We reduce bullies to the same level as nazis or KKK members, then we can inflict punishments suitable for those labels.
The way this works is very simple. It's a process called "dehumanization" where the goal is to label a group as being less than human. When people are labeled as sub-human monsters, it's easier to do unbelievably cruel things to them. Things we have always wanted to do but could never get wide support for. We've already tried to get bullying labeled as a violent crime, and it doesn't seem to work. If we find a way to label it has a race or sexuality motivated hate crime, we can label bullies as racist nazi klan members who deserve to be locked in jail and forcibly sodomized by the other prisoners.
This really isn't a troll post. Personally, I like to frame things in terms of violence against women. I argued that bullies act the way they do because they believe they can get what they want through intimidation and violence. Guess what abusive husbands do. They get what they want through intimidation and violence. If we rounded up all bullies and sent them to federal prisons, it would reduce cases of spousal abuse and domestic violence