I don’t disagree, but:

• People are weak when it comes to comfort food
• Having this would create dialog about the problem at hand
• Propping up a successful charity like this might cause corporate to question its policy, whereas a boycott results in hard to measure fiscal impact.

I’ve had this idea kicking around in my head for a few years: Christian Chicken Offset Charity. It would be an app that would notify you “You appear to be patronizng a bigoted establishment, do you wish to make a $1 donation to Charity X to offset?”

Could work for Hobby Lobby, In ‘n Out, etc, too.