The Supreme Court legalized same-sex marriage in America last week and the gay community is finally on a collective honeymoon. While many celebrated at Pride festivals and on social media, the critics have already emerged. Canadians can offer some guidance. After all, 10 years ago this month, we became the fourth nation on Earth to legalize same-sex marriage nationwide. If the U.S. looks to our example, it could learn a lot from Canada's fight for gay rights.