Sorry @jjkrkwood you’re guilty of spreading “fake news”
"The only thing in a McRib patty is pork, water, salt, dextrose -- which is a type of sugar -- and preservatives which are BHA, propyl gallate and citric acid which as used to lock in the flavor,"
https://www.cnet.com/news/finally-mcdonalds-reveals-mcrib-secrets/
I consult in the food & beverage industry. And no there are not any pork rectums in the McRib either. It IS a highly processed pork product.