I think Daniel Filan does a good job there both in clarifying debate and in questioning its utility (or at least the role of debate-as-solution-to-fundamental-alignment-subproblems). I don’t specifically remember satisfying answers to your (1)/(2)/(3), but figured it’s worth pointing at regardless.
Relevant here is Geoffrey Irving’s AXRP podcast appearance. (if anyone already linked this, I missed it)
I think Daniel Filan does a good job there both in clarifying debate and in questioning its utility (or at least the role of debate-as-solution-to-fundamental-alignment-subproblems). I don’t specifically remember satisfying answers to your (1)/(2)/(3), but figured it’s worth pointing at regardless.