1) The USSC ruled that this is outside of the FCC's jurisdiction.
2) The FCC is not in the business of telling companies how to price and provide services. Generally the free market does that.
Yes, and in the free market, you have a choice. In the world of ISPs, you often have no choice, or a choice of two. The telco's have treated the internet as net neutral up to this point. You are enjoying the benefits of net neutrality today. When the telco's start breaking the internet into tiers, banning sites, downgrading service, charging more - all simply because they CAN - You might begin to understand how HORRIBLE it is for businesses to do what you are suggesting.
Basically, big businesses have been giving you the drug for "free"(simply price of your internet package today), now it's time for them to charge you big $$$$$$.