To me that is literally cultural fragility. To fail to depart from the purity of the past myth you cling to suggests you lack the resilience to embrace the totality of what actually was.
Not saying you dont have a point- not saying we toss it all or slander everyone as evil- im saying we reckon with the complexity - the grey space between 0 and 1 if we want to actually realize the founding fathers very noble ideals.
I dont think this article made a very good attempt at it , and i think the previous comments pointing out what was lacking in relation to other "good" articles was the sort of "yes and" im referring to.
Though since you have no interest in rhetorical purity i should probably take your advice and dismiss the comment entirely as not being "in good faith" , right coach? ;p