Though privacy is also something people want "afterwards".
Something you'd wish you'd taken care of when its too late. When your identity is stolen, and used to get hundreds of speeding tickets on your name. When your sons pictures were lifted off your facebook to bully him after you had your 15 minutes of fame, and so on.
Gmail does not use end to end encryption. Yet it's overwhelmingly popular, and perceived to be secure. Google has a huge incentive to keep Gmail secure, and that's enough for most people.
With respect to Zoom, I am fully convinced that if the PRC (or the USA for that matter) wants Zoom to compromise a given account they'll do it. But that's irrelevant to the overwhelming majority of people. Sure, companies like Google and Microsoft should not use Zoom nor should activists or other people that might attract the ire of governments that have leverage over Zoom. But that is a substantial minority of use cases.
The other thing that is wrong with this sentiment is that "privacy" is not a binary thing: you don't "have privacy" or "not have privacy". You don't "want it" or "not want it".
Privacy and the need for it, is heavily dependent on context. You want more privacy when watching porn than when watching some sports. You want more privacy when you are a minority than when you are part of the ruling class. And so on.
Edit: so a person wanting to escape religion and seeking online help on how to do so needs different privacy than three friends having an online beer. Everyone has moments and time where they need (some) privacy. So probably 99% (a made up statistic) has a need to replace software in some (rare) context, over privacy matters.