In the 1960's, when I was in high school, our English book briefly covered how to recognize propaganda. One thing to look for is negative images that arouse the process of association. For example, "My opponent was born in a decaying shack!"

"Pink slime" sounds like much the same thing. We could carry the idea further. Let's get rid of:

green sludge (pea soup)
orange blobs (mararoni and cheese)
dirt fruit (potatoes)
========

Sometimes I wonder if today's columnists even went to high school.