The gay kids ARE dealing with it as best they can. They hide their sexual orientation as much as possible, and in some cases they bully others who are 'out' in order to protect themselves. What you are proposing is a continuation of the current situation. Defend themselves? The moment you do ANYTHING to defend yourself you are a victim of the official policy of no violence of any kind. It's simply a matter of goading the minority till they snap, then blame them for the violence.
Education is the obvious answer, but expecting proper education in this with the current climate is just stupid. There is more interference with good teaching now than ever before. And if you think this is just a discussion about GLBT, think again. This same issue applies to having kids with Down's in classes, mainstreaming deaf and blind, autistics, illiterate, immigrants, and on and on. I know what it SHOULD be, but expecting that to happen is simply foolishness. There is no willingness to be accommodating at any level of administration, and without that, as well as without parental and societal support, there is not going to be any change in behaviour.