I love how the manager of a McDonald's has to gall to stereotype against a group of people, particularly with the usage of a word like "faggot." Is he at all self aware of where he stands in life?
If he's going to be mudslinging against bronies in a way that's not only inconsiderate but uninformed, he should at least accept the assertion that workers at McDonald's are the de facto poster boys for the "loser" archetype, especially when they've been there long enough to assert the "Manager" position... and given what he's expressed to you and your friends, he seems to fulfill the stereotype on his end.
In my book, you should have told him to blow it out his ass and took your business elsewhere. It'd be absolutely crushing to that ignorant, job skill-less bigot to not earn the $20 or so that comprises his weekly paycheck.