Ex-NFL star Robert Griffin III took a stick to critics of pop megastar Taylor Swift and her dalliance with the NFL, but he soon found that his own fans were not so tolerant of Swift as the former quarterback may have hoped. The whole topic of Taylor Swift has sent many NFL fans over the edge as they have become increasingly sick and tired of having their football games turned into a stream of coverage about the pop star instead of football. But Griffin seemed unaware of the growing annoyance hardcore football fans have developed over the pop singer. In what may have been an unwise move, RG III…