I mostly download ancient stuff which flies under the radar; that's how I figured the enforcement parameters.
I don't think we will ever let that happen.
The number of iPhones is on the rise, the desktop share's declining.
I can see more devices like iphones being sold and locked down, but I can't see open computers not being sold anymore, not so long as there are companies and people with a will to make them. Look at System76 as an example.
Most ISPs don't care.
This made sense when the behavior was inherited from iPods and two-way sync was difficult, but then they never had any incentive to add the ability once people stopped connecting their phones to computers anymore and they could just force people to buy all their music from them instead.