I never said that.  
In any case, Costco is a responsible employer who stands up to the bullies.  I have no moral conflicts about shopping there.   
As for WM, I hold my nose when ordering from them, but my little independent grocers don't carry everything I need.  Sometimes it's a matter of choosing the lesser evil.  DH needed some meds that Costco doesn't carry, so I rounded out the order with foodstuffs that my grocer & Costco don't carry.             
I figure, better WM than AMZ, Target, and big chain pharmacies, even if only marginally so.  (No independent pharmacies nearby.)