What does privacy and safety, have to do with memory safety and CVEs? You are conflating multiple aspects of software engineering.

> And Larry Page himself doesn't use G-mail for privacy reasons.

I couldn't find anything to corroborate this with a quick Google search, other than some article from the early 2010s about gmail being slow.

> So many people have been arrested using evidence form Signal

Do you have any evidence that Signal messages were shared with governments or other entities?

Do you have a reputable source regarding the searching of everyone's phone? Apple tried something like this but couldn't make it work, maybe you're thinking of that effort?

you have a source for the larry page claim?