If you can tell me what the questions are again, I would be happy to try and answer them.
#1 What purpose do you have in stating this in reference to an article about gay marriage? The statement being some nonsense about a majority of people being bisexual. Untrue and irrelevant to the discussion.
#2 You can break out your DSMV-IV and recite all day how homosexuality is normal in humans, but what does that have to do with the societal concept of marriage?
#3 If a Federal Marriage amendment is passed, who is discriminated against, and how are they discriminated against? Again, I'd like to know how discrimination is necessarily a bad thing. (Possibly a different discussion.)