the US military's use of torture is responsible for the deaths of thousands of US soldiers because it inspired foreign fighters to kill Americans.
Anyone making such a ludicrous claim cannot be taken seriously, no matter what his experience and background. Total U.S. military losses are in the "thousands." So he is essentially arguing that our interrogation practices caused the majority of U.S. military deaths. I guess there'd only be a couple hundred U.S. military deaths if we hadn't resorted to torture. Does anyone actually believe that?
There are various powerful arguments against using torture or torture-like techniques. Making false statements that torture doesn't work, or putting forth crazy assertions that it somehow caused thousands of military deaths are not among them.