I don't doubt Asjkenazim Jews are damned smart but their political choices predominately as a group over the years have often been not so smart.
which makes me wonder if IQ is a cure all?
in some environments like prison or an apocalypse, brawn or marksmanship might be preferred
In the Apocalypse, you will need a combination of brawn, common sense, intellect, and marsmanship to come out on top. The thuggery cannot stop an armed man with intellect, organizational skills, and good aim. ;-)