Have we really already forgotten "Too big to fail"? It wasn't that long ago that those words were uttered and the US gov't bailed out failing private companies with taxpayer money.
And on the topic of profitability that pops up in these discussions, what about public transport? Healhcare? Power plants? Nuclear weapons maintenance? Should these be "profitable"? Is profit supposed to be the be-all-end-all state for everything? Because from where I'm standing, profit incentives make the world an actively worse place when it's free from oversight and regulation. If it were up to Nestle, the entire planet would be a giant reservoir only they could draw water from in order to produce soda. If it were up to Chiquita, all of South America would be a giant banana plantation to the point where they funded actual paramilitary organizations to achieve that goal.
The most profitable route for most companies is the route that is objectively worse for everyone involved minus the shareholders that reap the profits from their antisocial, short-term-minded destructive behaviors.