He isn't wrong, but the amount of privacy anyone experiences is largely dependent on how big of a target you have on your back. Hacking into ProtonMail or Signal, or better yet just installing a keylogger on someone's device requires a certain amount of effort. Anyone who is dedicated enough could surely get information on someone using an app with millions of users, either by finding an exploit or just installing malware like a normal patriot.
My personal belief is the primary purpose of surveillance programs is national security, and if you're not violating the Espionage Act of 1917 nobody gives a fuck. Nobody is using PRISM to figure out who is moving coke in Manhattan. Most dark net market operators were caught because some bored intern googled their username, not because an elite team of hackers exploited vulnerabilities in the Tor network after using alien technology to crack AES-256. That's the central problem with conspiracy theories, it's a lot more exciting to think the federal government is zeroing in on your Ford Focus in particular.
In reality he could get away with using ProtonMail and nobody would ever know. Edward Snowden? Maybe not.
edit: holy fuck this is textbook amphetamine psychosis: