We're all a product of our environments, our genes, what happens to us through chance encounters. We're also responsible for the choices we make. It's a paradox -- one statement doesn't negate the other. Failing to recognize either truth leaves an incomplete picture, though.
For weight loss to be a sustainable life change, I think we all have to gain an understanding of how our personal histories interplay with our weight (everyone's problems look a little different, so the solutions look a little different) -- and also become accountable for the choices we make.
It's not either/or. It's both. That's what makes it so complex.