A closer look

Debating logic with a fanatic is utterly pointless because their brain isn't processing a debate; it is fending off a literal assassination attempt. Identity fusion is a visceral sense of oneness with a group, where the boundary between the personal self and the collective identity completely vanishes. Once fused, an ideological challenge to the group triggers the exact same fight-or-flight survival mechanisms as someone swinging a baseball bat at their head, making rational discourse biologically impossible.