[Scott from the Left Coast]

Eventually it comes to a point where sophistry has no utility. Unfortunately, the chatty rats have nothing else.

[Cboldt]

-- Eventually it comes to a point where sophistry has no utility. --

Or negative. See "depends on what the meaning of 'is' is."

But generally, IMO, it (sophistry) is an effective strategy. It is used to advance misleading narratives and at the same time protect against criminal charges of perjury or false statements.