But in your hypothetical future you can still legally opt out, and live with nothing.

A slave can never legally opt out and choose to live on his own with nothing.

You are saying that there exists a level of information control that would justify slavery in the minds of the masses. I'm saying there is no such level of information control. (In fact, it would never even be justified in the minds of all the elites.)

We just need to agree to disagree. But I really think you're doing a serious reach in order to make a connection from privacy to slavery. And the sensationalism around this issue is what is keeping the masses right now from taking it seriously. We need to be explaining actual consequences to the masses, not shouting alarmist nonsense at them and then calling them stupid for not listening.