Will things ever change? *trigger warning*?

I am a very strong ally to the LGBT community. In high school, I founded my school's Gay-Straight Alliance, and in college, I have been active with a gay rights activist group. I do this because I want things to change for my LGBT friends and family. I want gay hate to end, and I want legal equality for all. Today, I received word that my younger brother, a senior in high school who is gay but not entirely out of the closet, is in the hospital, having had the **** beaten out of him by a couple of thugs from his high school who yelled such things as "f****t", "Homo", and "queer" as they hit him and kicked him. This happened right next to the high school where I had founded the GSA. Now, I'm starting to wonder if things will ever really change. I'm losing hope here.