If you have a domain and your own site, even hosted on a colocated rack or in the cloud, you're already miles ahead of those that don't. And if you have a domain and can manage DNS records, then in the future that doesn't preclude you from "graduating" to your own hardware, if you so desire. The goal here is more or less self-sufficiency with web properties rather than a pure interpretation of "rent" vs. "own." Because at some point you have to rent something from someone (say, you're not running your own domain registry and registrar).
If only companies have the right to participate on the internet, they are empowered even more to chose who should be allowed to even run a website.. It's a slippery slope that ends up in a very bad place, participation wise. It becomes like the airline industry, where the companies pushing hardest for more regulation and red-tape are the oldest, those who made their fortunes back when it was easier and cheaper, and who now use their enourmous wealth to make it harder for new players to enter their market.
It's the same everywhere, when you start allowing power to concentrate.
(Which of course assumes that there are laws in place against lock-in, just like there are already laws in place against lock-in for your pick of ISPs and obligations for mobile carriers to transfer your phone number to another carrier.)
Thing is, that edge infrastructure has been there from the beginning of broadband and is only recently beginning to slip away, with the advent of ISP NAT, agressive IP rotations, blocking of ports and not providing public IPs at all.