The issue is that now the government knows what you are doing online, and that should never be allowed to happen.
I grew up when the Internet was truly free, before Facebook even existed. People shared source code, videos, MP3s, games, regardless of "copyright" or "intellectual property." To some extent, it is still possible to do all of this, but these freedoms are being eroded every day by making the Internet less anonymous. The endgame is obviously to force people to pay for things whose "marginal cost" is zero in the language of economists. "Protecting the children" is just a convenient excuse.