You gotta think of the government like a gang, except in a different timeline, it would be
our gang. A government has human values and morals. It is a social organ. A corporation has only one value: increase profit; it has no morals. Government is a way for us to organize ourselves with the intention of improving life for all. In a corporation, the goal is profit. Any improvement in our standard of living is completely coincidental, and corporations will often take away these life improvements in an attempt to sell them back to us for no other reason than to increase profit.
It's important to make sure the people in power have their priorities straight. The government is already set up to make the country a better place for all. Corporations cannot fulfill this purpose.
And as for twitter, a lot of tech companies these days are vertically integrated monopolies. That means they have a diverse collection of proprietary services which lack inter-operability and stifle innovation and economic development. For example, how microsoft releases inferior versions of almost every kind of software imaginable, in an attempt to keep all people inside their ecosystem. This is what the original anti-trust suit against microsoft was about. Microsoft was found guilty of holding a monopoly multiple times. They only got away with it because they kept appealing until they found themselves in front of a weak judge. Does twitter have this kind of monopoly? I'm not sure. Amazon certainly could be broken up into a few different companies, as could microsoft, apple, google, easily.