It's not that complicated.
It's based in history, it involves money and fairness and control.
But it's not that complicated.
If you care about the details, it's worth reading this classic from Tim Wu. There's no debate about how we got here, and not even that much debate about where it leads. It's mostly about who has the power to control the access that you and others have to the information and interactivity that drives our lives.
If net neutrality in the US is taken away, everyone will pay more, service will cease to be universal, the poor will lose something they need more than ever, and some lobbyists will be very happy.
Here's a great tool. Scroll down to step two and make a free call. It'll take you two minutes, and it's worth more than that.