"With no natural predators to thin the herd..."
We don't have any natural predators anymore than kill off the stupid and lazy. So they are exploding in population. And we especially need some to kill off leftists, because leftists are destroyers who murder millions and destroy civilizations.
Think Stalin, Pol Pot, Mao Tse Tung, Hitler (and yes, contrary to the delusions of his supporters, Hitler was a leftist). Hundreds of millions dead.
Some years ago I read a novel by F. Paul Wilson, The Tomb, which had some creatures in it called the Rakoshi. They were sort of genetically engineered, and the first person they killed was an absolutely worthless mugger who attacked old ladies.
Liberals don't have any sense, anyway. I am reminded of the middle-aged white liberal male who marched with those supporting Michael Brown and got his head knocked. They appear to lack a common-sense gene that keeps them out of trouble.
I thought, what an idea. A leftist-munching predator! What with the coming genetic engineering, create a creature which only attacks leftists. After all, it's either them or us.