And the problem here is that I trust my network and I trust my operating system both significantly more than I trust my applications, especially as browsers hav

And the problem here is that I trust my network and I trust my operating system both significantly more than I trust my applications, especially as browsers have transitioned largely to being user-hostile by design. The primary benefactor of your end-to-end argument is ad networks that also own web browsers. Hence why this is political, it's about shifting network traffic outside of places users have control.