I don't think a person chooses their sexual preference, but I really don't care. If a person wants to be with the same sex, the opposite sex, or both sexes (or all sexes, for intersexuals and those who believe gender is a line which we all fall somewhere on, not necessarily the extreme of male or female), what do I care? They're not hurting me.

And I know a lot of lesbians and gay men who physically desire the same sex without having a "spiritual/intellectual connection." And I know people who fall in love with the same sex, and many who feel you don't fall in love with a gender; you fall in love with a person.