Rapaport is really pissed off about the situation -- with Jones claiming Red Sox fans yelled the n-word at him during the Monday night game at Fenway Park.

Rap -- a huge Yankees fan -- said the fans behind the taunts are disgusting and should never step foot inside an MLB stadium ever again.

We also spoke with Judd Nelson who's also upset -- and says he's shocked the other people in the stands didn't "take care of that guy."

Translation -- non-racists shoulda beat the racist's ass.

For what it's worth, Jones received a very warm ovation from the fans in Beantown before his first at-bat Tuesday night. Pretty awesome.