We decided almost a century ago that universal telephone service was something that we wanted to have. We need to make that decision about the internet now.
Rural America would still be without phones and electricity without subsidies and universal service mandates. Privately owned businesses are not going to invest $50,000/mile to gain a customer who pays $50/mo.
Then Bell System had to be broken down, and even that wasn't enough.
The whole mess with internet access in US is due to local monopolies held up by idiotic regulations. More regulations won't ever solve the problem.