Is he going to persuade someone who does not have TDS to get it? No way. He's way too over the top for that.
But may he persuade some other people with TDS to oppose wokery? And does the fact that he has severe TDS give him more credibility to do that? Yes.
So on net balance, he's a force for the good.
I actually agree. Sam Harris going full blown TDS can only help people, there are 2 type of people who are going to be affected . Those more on the left with TDS that may find a home in the center and those on the fence that will be moved to the right do to Sam being a nut case.