I need advice about an ignorant bigot?

so today i had a soccer game, and somehow me and a couple other people got into a conversation about lgbt rights. and this girl, claudia, was so ignorant. she said that if a or biual girl so much as touched her she would beat them up. then she went on to say that gay guys are fine because they're all so freaking funny. it was so ridiculous. so then i touched her back and she turns around and goes, "wait, are you a f*cking ?" and i said no. but i really wanted to say yes because i think it would be a noble way to get beat up. but i was too much of a wus to even do that. then, to make matters worse, she was going on about how gross s are when a girl on the team's girlfriend walked by. and i didn't say anything. nothing at all. and when she heard what claudia was saying she looked so sad. and i still said nothing. i wish i could have stood up for myself and everyone else who's ever been degraded or picked on because of ual orientation, but i think i'm so embarred about liking girls that i couldn't even stand up for what's right. i really don't know what to do. you know? like, i don't know if apologizing to the girl that walked by would do any good, or if calling claudia out would do anything more than get me beat up. i know it's only one person, but i feel bad because i didn't say anything to claudia, even though i should have. if anyone has any suggestions it would be greatly appreciated.