The thing is without regulations you will still have a few huge actors emerge from the free market competition and then basically rule undisputed, while giving up a lot of the advantages of regulations.
So how do you solve it? Stop offloading vital services to the private sector. Allow it to innovate, but always with the possibility that the innovation they bring to the table will be incorporated as a public service. And let's drop the notion that only profit-hungry individuals can innovate, the state should be as capable as any corporation to innovate. It's just a matter of misallocated incentives.
But you need a certain amount of government if you want a healthy regulation system with enforcement.
That is the most important point and tells you who's really ruling a country.
In fact any presidential candidate will need to have the approval of the richest people in the country to get anywhere, even just to pay for the campaign expenses.
is not the same thing as
Big corporations => small goverment (the argument you're trying to disprove)
> is lax on market consolidation
Maybe? That doesn't seem to be particularly small government, though. It has anticompetition powers, and just hasn't used them.
> less inclined to regulate for stuff like data privacy
I don't know what the this stuff is, but the government's size wouldn't really change if they did this more. Some states already do it, and there are huge numbers of regulations to follow already. That's why drugs take years to hit the market; the FDA process is long.