The useful question is not who is stronger. It is how the same story-world makes two different identities legible.
YPS gap1
Layer gap2
PhysicalvsAuthority
Analysis
YPS-3Physical
Authority layer supersedes Physical - Muzan Kibutsuji leads by world influence
YPS-4Authority
World Influence
8vs23
Different power types make direct strength comparison misleading. What matters here is the character identity gap: what each existence does to the world, not who hits harder. Tanjiro Kamado's DNA tells a broader story: their narrative is built around self-determination and identity / who they fight for. Muzan Kibutsuji's identity is more narrowly defined by comparison.
Tanjiro Kamado
Domain edges
Muzan Kibutsuji
Combat
destructive output
Systemic
influence / control
Narrative
luck / story weight
Derived from DNA / bars show relative edge, not absolute power