And a "katsap" is a goat. Because it's like a "tsap."
And "malorus" is, of course, not meant to be derogatory, as you claim. It's simply that the country has limited autonomy, like a lizard's tail, for example, or a burdock. It exists, but it's also easily detached. And the tail reeks, deeply rooted in the gangrene of "khokhlo-patriotism," which erases glorious Russian deeds from textbooks and replaces them with meaningless hatred. Perhaps this is very tolerant.