Each year you can do less and less to limit your exposure. That argument will not old up over time. When IOT and 5G puts more devices online all of these things can be used for surveillance. This argument is not fair or realistic when looking forward a year or two.

This is essentially true of government surveillance as well. Not really a surprise, since most modern state surveillance issues are essentially about ways in which private and public/state power cooperate.

The overarching point is that it's naive to consider issues of privacy particularly distinct in the public or private sphere. Neither market nor political power are trivial to escape (and they have other things in common). Individual opt-outs will only get you so far from either a Google scale or state scale operation.