In what way would it not? ISPs could leave everything as it is, and there'd be no change. But without net neutrality they will have the ability to extort cough, sorry, "request" that companies and (potentially) customers pay them extra for prioritizing certain content. They'll also have the ability to deprioritize content, potentially costing companies that don't pay (why I call it extortion) customers. If Comcast does this to Netflix (deprioritizes) then Comcast can drive customers to their own VOD services. If Netflix doesn't pay, Netflix loses customers, Comcast gains customers. If Netflix does pay, Netflix retains customers, Comcast gains money.

Either way, Comcast is better off. The primary issue is that ISPs are not just ISPs. They have many services which compete with 3rd party providers (some big, some small) and their market position will allow them to abuse the hell out of both customers and other service providers.

Sure, the incident that caused the FCC to write the Net Neutrality rules.

https://www.extremetech.com/computing/186576-verizon-caught-...

Basically the ISPs held one service for ransom by slowing down the traffic enough to make it run poorly until the service paid the demands.

We can probably expect to see more of this in the future. Amazon and Google should probably start setting aside a warchest for the inevitable shakedowns.

Comcast successfully extorted payment from Netflix a few years ago by throttling their content until they paid up.

Depends on the ISP, not for the federated local non profit ISPs for example.