I lack the argumentative sophistication but I will try to rephrase my argument.
Rewriting the meaning of terms so as they mean the opposite of what is socially/historically expected or contradictory is evil because it undermine discourse. As proposed by Habermas, norms are derived inter-subjectively in processes of argumentation between individuals. In this framework it's an presupposition that participants in communicative exchange are using the same linguistic expressions in the same way. The latter is tautological as any argument that is constructed with an unmeaningful term violates the three laws of logic: P is P; P is not non-P; either P or non-P. The externals social/historic and replaced meaning of the term doesn't matter for this analysis and just that they are contradictory.
TLDR: It's not even unfalsifiable, just plainly meaningless.
