The idiom Yeshua used regarded "eating" the words of a teacher...not eating the teacher. We have similar idioms. A sportscaster might say of a linebacker who tackled a quarterback for a loss: "He really ate him up, didn't he?"
While other Roman Catholic errors could be pointed out, I am not anti-Catholic. Instead, I am just a fallible man who makes errors, too, and who recognizes that the vast majority of Roman Catholics have professed faith in Yeshua and have kept His name, and faith in Him, alive down through the centuries. Good for them.