There are no non-smart TVs. You cannot buy one. Your only alternatives are to not buy a TV period, or go to great lengths to firewall your new smart TV.
Yes, non-smart displays exist, but they are not sold to consumers, nor at a price consumers can afford.
This is one of those prime examples of how the idea of "vote with your wallet" is a fantasy. Consumers are not in any way in control of the market.
There is no possible way to protest smart TVs when the only options for a new TV include spyware. Your only possible move is to not participate in the market, which then summarily ignores you.
Similarly, existing without a smartphone in today's society is largely not possible. You can't even park in many cities without an app.
I think it's clear that you don't understand the problems being discussed and are just blithely assuming that deflecting blame onto individuals is a reasonable position. It isn't. It's moronic and unconsidered.