i have no hope. everything i do is currently in gmail and very much subpoenable because it's just the quickest way to get shit done and share with people, I'm not going to get a cave-style airgapped encrypted Linux desktop for my daily life. Some of my stuff is in the messengers but I'm almost 100% sure that eventually they will get to those as well, so yeah.
It would be funny though if OpenAI gets to that data and steals it, sorry, trains on it first. Like, before Palantir or whatever else is out there.