Sorry to break it to you, but the internet is very corporate controlled. Its bits flow over the private networks of Verizon, Comcast, AT&T, etc. It's just that so far, these companies have not exercised the extent of their control.
And then when you examine eg China (arguably the largest Internet market), it too is completely government controlled.
The tier 3 internet business of these corps is different from the consumer internet business. The consumer internet business's legal monopolies aren't so much an arm of a big federal government as they are completely dominant over thousands of very small local governments, where $50k of local access TV funding will buy you exclusivity because those governments have been squeezed for funding for the last 10 years.
It's also not really comparable to the way things work in China, except insofar as 'corruption and imperfections exist' in both cases.