Certainly the constitution doesn't care about granting the government the right of telling a company what to do, that would be serious overreach. It's really just an interpretation of what it means that the constitution *doesn't* tell us how to think of the Internet.
Does that mean that the Internet is something that only exists as whatever comes out of your end of the cable when you buy a service with a local Internet provider? If so, it makes sense to think of the Internet as a product that is generated by your local ISP, and therefore, they have the full right to decide what it looks like.
But this is not how people today think of the Internet. If you ask people today what the Internet is, they imagine it as a unitary thing that is available to people world-wide, and it looks the same to all people everywhere. The Internet is a space of freedom of access, freedom of information and freedom of expression. It's extremely important to understand that this Internet of freedoms is completely incompatible with the Internet as a service idea. You cannot have a free Internet and at the same time an Internet that is a commercially-selected subset of Internet that works best in the business context of your local cable company.
An Internet-as-a-service is an Internet where the ISP is the socialist government, dictating for you, what the cyber world gets to look like. This is the consequential Kavanaugh Internet: you may think of it as an Internet born from constitutional freedoms, but an Internet born from freedoms is decidedly un-free.
Once we realize that, it's up to us to decide what we want to do. Do we want to throw our hands in the air and see what kind of Internet market forces will create for us (note: it will be different depending on what state you live in)? Or do we want an Internet that mirrors our current perception of an Internet of freedoms? If we want the latter, the only way to get an Internet of freedoms is by writing it into law. Regulation that states exactly what those freedoms are, and tells the gatekeepers that they need to provide us with at-minimum a version of Internet where those freedoms are respected.
A lot of people think it makes no sense that regulation creates freedom, and a lack of regulation creates oppression. But this is precisely how things work in the real world. You cannot be free without legislation that tells you what your freedoms are. What do you think the constitution is? It is the supreme regulation of your personal freedoms. What you need is a constitution of the Internet. This is net neutrality.
Net neutrality is the constitution of the free Internet. And it doesn't exist (and neither do your freedoms) unless we create it.