Well for the majority of human existence we got by on talking to each other in person. So I think the collapse of humanity is a bit dramatic.

Now, as we've seen with torrenting, if any country doesn't comply or enforce laws against how their citizens should interact with the internet you can just VPN through that country to do what you want.

Ok so

1. Create the infrastructure for an entire world government.
2. Force every country to join and fully enforce laws tying every person to their online accounts.
3. Of course this will create a dangerous police-state like China's government for many countries where speaking out against your government is dealt with harshly. So either abolish free speech or fix all corruption in all the countries in the world.
4. Of course this level of control over the world will attract a lot of corruption itself, so build an unassailable global set of checks and balances for how this government should be run that literally everyone on earth can agree on.

Or

Proper journalism.