The vast majority of people do not want that Internet. See, for example, the popularity of Facebook. (About 1.2bn users per month).
You need technical measures, and law, and effective oversight.
Law and "oversight" are really not likely to be effective. They're only useful as part of a "defense in depth" strategy, where we make it technically impossible for any attacker to get this information, and if our protocols have flaws in them, the government shouldn't be allowed to look at them anyway, so we have a second (weaker) layer of defense behind our primary defense.
Oversight is a legal measure applied to police and security agencies to ensure that they are obeying the law, not something you do to the general public.
I'd like to see a pay-per-install Tor browser program materialize, one that would incentivize retailers and ISP techs to install Tor browser on customer devices. Every device should be connected to Tor from the moment it is powered on. Then we could at least go back to having free speech on the Internet.
Or do you view envelopes with this same paranoia? https://www.philzimmermann.com/EN/essays/WhyIWrotePGP.html
>everyone would be suspicious all the time, and therefore no one would be suspicious ever.