I have a list, not written, that I boycott for my own personal reasons, like Wendy's for trying to kill my family by poison, Casey's General Store for raising the price of gasoline on 9/11 to $6 per gallon, Best Buy for selling me a used computer as new. There are more on my personal list but I do not try to get other people to join my boycott. Maybe you like some or all of the places I listed. That's your business.
How did Wendy’s try to poison you?
What you are suggesting is called “Consumerism”, and it was quite the bees knees with Liberals at one time.
Not sure what changed their mind. Either they got pissed at Ralph Nader for taking out AlGore, or it dawned on them that it was more fun to actually roll these companies for cash.