What's hard to understand? Picture a spectrum with three points labeled "left", "center", and "right" respectively. Each point is a "position", none of them are neutral (because they all exist on the spectrum).
> Otherwise, why is critique of the center different from attacking the left or the right?
Presmably the OP meant "it's crazy to attack the center with equal fervor that one applies to the opposite extreme". E.g., leftists attacking everyone to their right as uniformly "far right", using language like "white supremacist" and "literal Nazi" to describe anyone who is not far-left, etc.
