Yes azor you are right I go about it the wrong way. But Cofty regularly dismisses Derrida and others I suggest while freely admitting he's not read anything. I've actually read the stuff he promotes, so I can engage with it on specifics.
The JW approach is empiricist too. They claim the evidence supports their view. There are other ways of approaching things than purely empirical.
Nietzsche said something like, evidence is like the decoy the trickster uses when he wants to conceal what's really going on. Evidence isn't everything. Who determines the meanings of the terms the empiricist uses? Often that's a better question.