The 2nd amendment says “a well regulated militia” and we do not have that. So maybe it’s fuck the politicians that keep our guns poorly regulated. That is what is doing more harm than good. The second amendment is designed to allow citizens to defend themselves from government tyranny not to have guns just for shits and giggles.
Well hate speech is free speech too. Schools don’t want to foster that behavior and so they can make and enforce policies to create the learning environment that they want. Also your argument works for bringing guns into schools too. The second amendment is above those school policies too.