You can, actually, by not having a free and open internet. Which is what we will eventually have. And it won't be because of some super shady and evil council of old men in suits, but because the public will beg for it.
That doesn't make sense any more than thinking they can somehow ban encryption when their economy is dependent upon it. Even China with its efforts so overkill that it does the opposite of its job by making it incredibly obvious something is going on when words start getting randomly censored like censoring 'Shanghai stock market' after it ended on a number that was a very coded reference to June 4th, 1989 aka Tienanmen square.