As far as governments go, we could all become anarchists be done with them, but if you think for even a few seconds about it you would realize that this enormous vacuum of power would be filled by something. Corporations, rival nations with their government still intact, military warlords, or new political factions seeking to establish new governments. We have thousands of years of history that shows this pattern emerging again and again to the point that it is practically a natural law of power. The only check on power is greater or equal power. Ideally, you want this power to be answerable to the greatest number of people that this power is intended to serve. You may recall a lot of smart people during something called the Enlightenment spending a lot of time and energy on experimenting with different forms of government that met these criteria and still managing to not quite get it right. Many people in the West live in societies multiple iterations down the line from those established in the 18th and 19th century revolutions and there are still glaring issues. What do you suggest instead?
You have a say in your government's leadership. Don't like the President? Vote them out. Don't like Zuck? Nothing you can do about it.
Corporations are also accountable to governments, as this story illustrates. If US courts and/or legislators decide they want it, Google ceases to exist.
Economists think of this in terms of "Exit vs Voice".
With governments, you have a voice - one vote for deciding who's in charge - but no way to exit, even when your side loses.
With corporations you can exit - stop shopping at Target - but no voice in how Target is run.
Both models have pros and cons, and it's good to understand how they differ, and what situations they're suited for.
Basically - how do I exit a company if I'm not the one choosing to use their services?
I cannot use the internet and avoid Google's ads.
I cannot use the internet and avoid Amazon's hosting.
I cannot exit the internet because I literally make my living with it, the competitive disadvantage of doing so is SO great with the way we've structured services and life in general that it doesn't really work.
One wouldn't be allowed to use iphone or android? It would take a lot of manual data entry to migrate my accounts off gmail. Youtube obviously wouldn't be allowed but do I get to use adsense powered websites?
Philip Pettit has spent extensive time addressing really interesting questions like these, like what might distinguish "public" domination from "private."