We been through this before dealing with Costco. The founders of the company does donate against our conservative values but that isn't money from the company it is their own personal income.
I can disagree with who they donate to but it isn't unethical.
Skimming company profits for political donations is just plain stupid and unethical.
The founder might not but the company donates to all kinds of charities. I bet they even donate to Komen, almost everybody donates to Komen. It’s generally good PR, except for a small chunk of the people paying attention.