"Artificial intelligence is trained on your data"...that's not the real risk. It's just a smokescreen, artificially created because who cares?
The real risk to you isn't that tomorrow's models are trained on your data.
The real risk is that thousands of employees, hackers, and governments can access all your most private and proprietary conversations at any time, and this access will be available forever.
Privacy must be the default setting, or humanity will face annihilation.