Or:

C'mon, Sailer, why are you so evil as to mention the Wall Street Crash of 1929 when discussing the Great Depression? Lots of other countries were involved in the Great Depression. And even if there hadn't been a Wall Street Crash in 1929, the U.S. probably would have suffered in a Great Depression sooner or later anyway. Thus, logically, anybody who mentions the Wall Street Crash of 1929 should be hounded out of polite society.