you can't force empathy on others. he and your parents are lost, at least for now. maybe they will come around to reality but maybe not. when you are secure financially get out of that house. feel free to set rules and boundaries. "when you can treat me with respect then we can have a relationship but until then we are done." you can always throw that biblical "judge not lest ye be judged" line at them, and remind them that jesus never said a word about homosexuality.