Where is there left to go? Polygamy will obviously be legalized fairly quickly: historically it's been much more widely accepted than homosexuality, plenty of animals have polygamous relationships so it's "natural", etc. I don't pedophilia is far behind. Today they talk about "consenting adults", but the key arguments for homosexuality have always been "you have no right to impose your morals on me" and "why should we need a law to be allowed to love each other". The first clearly applies to pedophilia as much as to homosexuality. And as to the second, who wants to take bets on how long before they start saying, "You are saying it's wrong to love a child? Do you hate children? What's wrong with you?"