I partially agree. I think the ban is necessary in part because once we go down the route of private prisons we create massive economic incentives to push peop

I partially agree. I think the ban is necessary in part because once we go down the route of private prisons we create massive economic incentives to push people into prisons and keep them there. These incentives will be on top of the incentives that already exist. So I see this as cutting off a potential source of greater problems down the line. But you're 100% right, there are already massive incentive systems in place that we need to overcome to achieve real change. Frankly, I think a great first step would be eliminating prison guard unions or at least putting pressure on them (e.g. other unions refusing to recognize them).