But you cannot draw a line from those to the genocide of the Jews. Even if you ditch morality, a global conflict and the mass extermination of one of your most productive minorities is lousy business sense. The whole thing is completely inexplicable

Maybe not so inexplicable if you read Hitler's own writings. He clearly says that his policy of 'removal' of Jews is due to their involvement with the banking industry which, in Hitler's view, was one of the main reasons for Germany's troubled state.

Of course that reasoning wasn't justified but it's not so clear to me that his terminal goal was eradication of Jews. Maybe he was convinced of his own lies.