It doesn't even compute in my brain that one can be against e2e. I guess it's an opinion like any other, but I can't relate at all.

I would like to learn more about this, could you provide a source?

The one thing that's more annoying than Facebook are the whistleblowers of Facebook (like that frances haugen character, which I'm fairly certain is a spook). Such a cheap and condescending group of people who think they know more than the rest.