There are plenty of opensource programs with telemetry built in. Many company build there products using opensource components and sell your information in the backend. This is not an opensource vs. closed source argument. This is a data rights/privacy argument and until governments and citizens take the matter seriously we will get nowhere.
I totally agree that we are well past the point where data security and privacy need strong regulation or legislation. At least Europe has GDPR.
However, I hard disagree with drawing a false equivalence between the open source community, particularly in the operating system space (which this article is about), and the closed-source commercial vendors. Also disagree that adopting open source "gets us nowhere" in this battle.
Sure, there is some telemetry in the open source world, as we see in the Firefox discussion. We also see reactions such as LibreWolf, or community outrage at the likes of GitLab when this happens. It's just not part of the open source community's ethos to look the other way at hidden telemetry. In the open source realm it is a) it is the exception rather than the rule, and b) the fact they are doing it is clearly knowable and neuterable[1]. That's a far cry from Apple validating every executable you run, or Microsoft not even allowing you to opt-out of telemetry, and god knows what other vendors of core closed source software do now.
I'm not an open source zealot, but the race to the bottom over the past 10 years just hardens my resolve to own my devices and not the other way around.
[1] Again, talking about client-side software or servers you run/control. You will always have to figure out how much you trust SaaS providers regardless of what software is part of their offering.