[dane-pgp]

> consider the difficulty of deciding that the people behind a fork of Chrome or Signal are trustworthy.

Yet web users did decide that the people behind Chrome were trustworthy, even when there were still sites claiming to "work best in Internet Explorer". You're arguing that something is unrealistic, and yet you give an example of that thing actually happening.

> The average person doesn't have the knowledge to do due diligence

The average person knows that Facebook is bad for society, and yet they are tied to the platform because of a lack of interoperability. A minority of users have accepted the switching cost and moved to Fediverse instances, but I think it's not controversial to suggest that more people would switch to Facebook competitors if they could stay in contact with their Facebook friends.