There is no objective truth to discrimination. You may want to say its wrong and bad and pointless and cruel and stupid, but people dont discriminate for no reason. You disagree with them, and disagreement is okay. And its not your job to undo those reasons - leave that to the psychologists, social workers, or parole officers. Instead, just be honest about who you are and how you feel, everywhere you go.
People have to change their hearts before they change their minds.
Be an open heart and maybe, just maybe, youll open other peoples.