There IS no logic.
There is ONLY the Revolution.
Eric Erickson’s take on the logic is interesting.
By banning the flag you make it more desirable to buy and fly. Not necessarily as racism but as a way to throw the middle finger to the Left.
However, massive and increased sales of the flag will then be used by the Left as evidence of the kind of widespread racism, requiring significant governmental action as a response, they claim exists.
Erickson uses the analogy of guns. Threaten to take them away and sales spike. The Left then uses that spike to say that there really is a gun nut culture that needs to be reined in.