You should take it as "I'm not interested in your ******* match today" because that's what it is.
Boston franchises have long been considered the most racist franchises in sport. Making fun of their fans for that is part of the game. As you're the "I'd suck Mike Trout's **** any day, any time" kind of fan, I don't expect you to understand. So, in summation, I'm not arguing with you over Boston.