What are "family values"? Well, it depends on who you'd like to listen to. The Religious Right likes to claim to have the monopoly on "family values". According to James C. Dobson and others like him, you're not a "proper" family if you don't conform to his ideas. And let's not forget that everybody who isn't heterosexual, or is divorced or a single parent, or supports the legality of stuff like gay marriage, they are "anti-family". This is nothing more than a cheap strawman. Nobody is "anti-family". Everyone accepts that the "one-man-one-woman-with-kids-married-for-life" formula is just fine and dandy if that's what you want to do with your life. We just appreciate that that formula is not suitable for everyone. So what exactly are my "family values"? My family values are understanding people's needs. My family values, in short, are love, tolerance and monogamy.
So don't let anyone ever tell you (if you are indeed a liberal on matters like this) that you are "anti-family". having a broader definition of something does not make you against it.