I tend to agree with a lot of what is said here. Though it is (assuming they're honest) local only to be clear.

If it was an opt in feature with robust configurations including encrypting the db based off your login session and was auto locked up on log off/reboot (until login again): is that good enough, or would folks then say we should assume the account is also compromised?

I'm trying to disambiguate between generalize ai dislike, Microsoft dislike, windows dislike, distrusts, etc. to consider a world where this exists in Windows and people who would use the feature would feel comfortable

In other words, consider an app that did the same thing. What security constraints would be expected?