Given that most people would care if even a stranger were assaulted and pushed to the ground, perhaps the clerk reasonably assumed you didn't care because it was a Catholic figure who was the target. In that case, he would be right in assuming YOU were intolerant - of Catholics.
Well, at least people around you must be tolerant of fat people.
Forgive me, I don't watch fox nows, and generally do not find myself making a fist over the scandal of the minute. If anything, I'm intolerant of the tabloid nature of the press, and the people who find themselves filled with righteous indignation over every single sensation in the news.