You can't decide to stop being black, but you can choose to not buy an iPhone. That's why race is a protected category and your smartphone is not.

And it is not "braindead". EncroChat was a "privacy service", selling phones featuring E2E encryption, disabled cameras and microphones, etc... Even though it wasn't marketed as such, it was mostly a service for criminals. And they effectively searched everyone using these devices (they hacked the firmware), and maybe a few people who weren't criminals got searched, as it happens in many investigations, most people turned out to be. The result was many arrests of people you really want to get arrested, with weapons, murder, torture, etc... being involved.

That's also the reason why mainstream apps like Signal are important for privacy, if only criminals use an app, having that app is a legitimate reason for being suspected. If most people using the app don't really need privacy and it is mostly used to talk about what to eat for dinner, that protects those who really need that privacy. And yes, it includes criminals, unfortunately, so it is actually a good thing for society when criminals use their own communication channels instead of using mainstream ones, good thing most of them are not so smart.