Right. That's the economic argument: hosting anonymously-submitted/unvetted/insecure/exploit-prone junkware is cheap. And so if you have a platform you're trying to push (like Python or Node[1]) you're strongly incentivized to root your users simply because if you don't your competitors will.
But it's still broken.
[1] Frankly even Rust has this disease with the way cargo is managed, though that remains far enough upstream of the danger zone to not be as much of a target. But the reckoning is coming there at some point.
What it is is feasible, and IMO the alternative you're suggesting is infeasible under our current model of global economics without some kind of massive government funding.
> you're strongly incentivized to root your users simply because if you don't your competitors will
Python is not rooting it's users, this is hyperbole.
But it's still broken.
[1] Frankly even Rust has this disease with the way cargo is managed, though that remains far enough upstream of the danger zone to not be as much of a target. But the reckoning is coming there at some point.