I read/ watch shonen- ai, but not yaoi, if only because I'm not really comfortable with anything explicit. I think it's cute ^_^.
I realize that some people may not be comfortable with or understand homosexual relationships, and I completely respect that. However, personal feelings on this issue are absolutely not an excuse for insulting people or attempting to tell them what they can and can't do in their lives. Feeling uncomfortable with homosexuality is understandable- saying that it's wrong or inferior is bigotry.
Um, about straight guys liking yaoi... There's nothing at all wrong with that. Yaoi is a very different kind of romance, and one which can be much more interesting than run of the mill hetero stories. I don't know if this will make anyone feel more comfortable, but I like girls, and I still enjoy shonen-ai. I know, it's a bit different for me... sweatdrop but, the principle is the same... you don't have to like guys to like BL, and liking BL doesn't mean you like guys. I'm glad that there are some guys who have opinions about BL other than "eww", and I hope that more of them will eventually come around. Also, while most of the current girl/girl stuff is either gratuitous or inane, I'm hoping that some u.s. distributor will dig up a good series and license it, because when it isn't awful shoujo- ai is a similar kind of romance to shonen- ai, and I think a lot of people would be pleasantly surprised.