Another argument vaguer and even less persuasive is that gay marriage somehow does harm to heterosexual marriage. I have yet to meet anyone who can explain to me what this means. In what way would allowing same-sex partners to marry diminish the marriages of heterosexual couples?
I've seen people with a tremendous amount of educational background in the field not turn out to be terribly good actors and I've seen people with no education in the field turn out to be people that I admire quite a bit.