I don't think homosexuals want to live in a sort of gay "normal" marriage so much as they want to destroy the very concept of marriage itself. Moving to Canada doesn't achieve that for them.
I agree. Once gay marriage is legal, gays will lose interest. The point is to destroy marriage and force complete acceptance of homosexuality. Once gay marriage is legal, homosexuality as a normal choice will be taught in schools and parents will have no standing to object. It is already being taught in some schools, but at least parents can object and change it if they care enough to try.