Boycot Costco DEI. Drop your membership. Even if only temporarily. You can always rejoin next month if you need it. Drop it for at least a month. This will cause Costco to quickly reverse policy. FAFO.
Sharpton celebrates Costco DEI programs.
Whoops left the link off again.
https://www.dailymail.co.uk/news/article-14327865/costco-al-sharpton-dei-stunt-slammed.html