I'm not talking about fewer issues in general, I'm talking about less of this issue: the issue that people are self-radicalizing by sorting into echo chambers where their priors are re-enforced instead of being compelled to hear someone else's worldview or a broadcaster-controlled consensus worldview.

Broadcaster-controlled consensus worldviews can be faulty. But we have not replaced those faults with the self-sorting of the listener, because listener worldviews are also faulty.