We could all go on Google as easily as anyone else here could, and look up the parent companies that control the television and newspapers which we have previously identified as heavily consolidated, and we could along the way notice that those same parent companies also control a commensurate share of "the internet."
In 2017, the control that those companies enjoy over internet hosting and access is not complete. In all technicality, local sub-sub-subsidiaries could hold legal title to some subdivision of the internet and/or internet access. The same has always been true, though, of the old-fashioned media we've been taught to decry. There have always been pitiable faux-equivalents of non-mainstream access to communications media: independent or public-access television and radio; CB and Ham radio; handing out VHS or audio cassette tapes; printing cheap pamphlets or independent newspapers, founding unaccredited institutions of learning, et cetera.
Our perspective, from 2017, enables us to look back on ye olde tymes and see that all of the supposed independence and freedom enjoyed by men who had invented or acquired the printing press or the radio was actually a fake. By controlling radio device interference statutes and regulations, airwave licensing, the distribution of public funds to paper publishers, and the coordinated dissemination of predetermined news topics, the conglomerates were functionally able to dictate what the vast majority of people knew and talked about, despite the technically-omnipresent ability of independent pamphleteers to print and distribute their own viewpoints. Things are much the same today, where we perceive a vast freedom in the internet due to theoretically independent hosting and comments sections, while in fact, we lack the power to collect and channel public opinion toward non-mainstream topics. We're so ecstatic at "our" success in making and using the internet that we're sure things are completely different now than when those ignorant geezers had nothing but a few channels and two local papers from which to choose.
The ability still possessed by the media cartels--the ability to coordinate news from multiple sources worldwide, while overtly or subtly disparaging alternative sources, and to establish via public education standards the intergenerational inherent mockery of what is no longer or never was meant to be mainstream--makes the internet function no differently than industrial mass media ever has. However we may flatter ourselves about our modern freedoms, it has turned out that the boundaries of these experiments were not our technology, but our intelligence.