Starbucks was the company that had this brilliant idea. Don't just serve customers $4 coffee and lovely pastries. Hector them about race, because who is better qualified to explain such weighty matters than a 22-year-old barista? The corporate culture has been encouraging this sort of behavior for awhile now. Why should anyone be surprised that these same employees would be abusive to a woman wearing a Trump t-shirt?
No one should, because of course they did: