i never got why the go to anti-gay phrase was homophobic, for a number of reasons:
1. just because someone doesn't like something doesn't mean they are afraid of said thing. i don't like leeks but i am not scared of leeks
2. -phobia connotates a debilitating, irrational fear of something. if you have a phobia, you aren't worried by your phobia- you are scared beyond reason. case in point, my mother had a coworker with a snake phobia and she recoiled from a brooch with a snake on it.
i just don't get it