This isn't Mexico, Dan.
Why don't we celebrate the 14th of July, August 15th, etc. ?
Should we raise the Mexican flag above the American on Cinco De Mayo?
Why do you assume the wearing of the American flag was bigotry? What if it was someone saying, yes, I'm celebrating America, because you can celebrate Mexico freely here in America?
Speaking of one of those dates, wouldn't it be the below flag that should cause issue on Cinco de Mayo?