As someone who was raised in a same-sex household (people against same-sex marriage love to speak for us without ever speaking to us), here's what I can tell you about growing up in that situation. Before 1999 when spousal rights were extended to same-sex partners, we had no where near the benefits children of opposite-sex married couples had. In 1999, my siblings and I were able to start visiting an orthodontist as my mom's partner (but not my mother) had that covered on her benefits package from work. Before same-sex marriage, we were aware, generally, that our family was not accepted by society because it was different, because there was no word for your parent's same-sex partner, there was no vocabulary to navigate the family, in the way that there was for children of opposite-sex couples. We moved in with my mom's partner when I was six years old, she helped raised me, her parents were my grandparents - sort of, because they weren't really related to me at all, not through blood, and, importantly not through marriage.
My mom and her partner never got married (they actually broke up just after it was legalized, so maybe this isn't the best example), but one thing I've noticed regardless of marital status (commonlaw vs. married): children of same-sex couples that I know (and most are the product of an earlier, failed, opposite-sex marriage like me) started calling their parents' partners their stepmoms and stepdads after same-sex marriage was legalized. Not only that, but other people started finally recognizing that our families are families, that we're related to the people we raised us. Homophobia can still make coming from a gay family difficult for children, but I'd wager it's much easier now than it was when my mom first came out, when we had to hide our family because the kids at school might make fun of us, or beat us up, or worse, and the teachers probably wouldn't help us out. You don't know what it's like to have your closest friends forbidden to coming to your house on account of your parent's "lifestyle choice" until it happens to you - it doesn't feel very good at all. It also doesn't feel very good when people tell you same-sex marriage is wrong, that your family is wrong and what's wrong with society today, or that you're somehow damaged because of who your parents were.
And as for that old BS about gay parents having gay kids, I'll share with you what my mother told me when I first came out to her: "Oh honey, I've known you were gay longer than I knew I was."
When Rob Ford or any other politician makes statements like this, they are playing politics with our lives and our families. It may not matter much to those of you who see the era of exclusionary (not traditional) marriage as "the good old days," but for those of us who this actually affects in a very real way, this is beyond troubling - it's downright offensive, and not just a little frightening.