Non-homosexuals have the same right to be offended by homosexuals as homosexuals have to be offended by non-homosexuals. Fair's fair. If you don't like the fact that people have a different set of values or a different way of life to yours, that's tough. We're all stuck on this planet so we might as well at least try to get along, but that doesn't always happen and you can guarantee that you're going to offend some people whatever you do, whether its because of who you're attracted to, the colour of your skin, who you pray to, the music you listen to or which team you support to name but a few.