FUCK YES!
You know, I've always been uncomfortable with the whole "I had babies so my stretch marks are beautiful thing." I mean, it's great, and I applaud any way we, as women, find to take back our bodies, but also, this is just normal human shit.
I have never given birth, yet I have had stretch marks on my belly and hips since I was 12 years old. I have a poochy tummy that was never more than 4 months pregnant. And it was poochy before the pregnancy. Like you said, this is all HUMAN. (I've been meaning to write about this for ages, and you might have just inspired me.)
Also: I LOVE hearing women talk about how we're over the whole "you're beautiful" thing. Fuck yes fuck yes fuck yes. I'm in the trenches of that right now. We aren't ornaments! We have other values and other things to do here!
Yes yes yes yes yes! You are amazing.