I wonder - how big does a company have to become before a society steps in and says "you have enough power to control and affect the lives of X% of our citizens. Therefore, we must have a say in how you conduct your affairs." I mean, this is for all intents and purposes what regulation is - and the reason for it. Otherwise, set aside the very idea of government as a farce, and populate the world with a dystopian patchwork of private corporations that behave like nations.
This of course can never be true for mom-and-pop. But hell yes it is true for Google.
I think it isn't even a matter of bigness per say but of monopoly essentially. Your local water company can't decide to just jack up prices to $2500/gallon because they have an exploitable monopoly position.
Meanwhile say GE could be very huge and produce 50% of lightbulbs but if they decided to be grossly unreasonable people could just stop buying lightbulbs from alternatives. Now if they had created their own bulb-socket standards and enforced them so that only they could produce bulbs that fit into the socket then there would definitely be an abuse of monopoly standard and ample grounds to argue "No you abused the patent and it will go into public domain now as part of the punishment.".
Exactly. It's always been the same bargain as with government.
'We the people / customers / market recognize that it's in our interests for your functions to be centralized (whether through functional necessity, efficiency, etc), however, in return for our granting you a monopoly we demand some say in how you run your affairs.'
The alternative should be, if Google isn't willing to accept that, then they deserve a lot harsher anti-competitive regulation. The GDPR would be the tip of the iceberg, and would continue into preventing their leveraging their size and customer knowledge into new related industries.
This of course can never be true for mom-and-pop. But hell yes it is true for Google.