This is ridiculous...Jane needs to stay out of the jungle.
It's not ridiculous at all. It's Behavioral psychology. Ultimately we are all animals. We just happen to be more evolved. We share a number of traits with primates whether one is a Stephen Hawking or a Donald Trump is irrelavant. It's simply the human condition.
You can look back through history and see all manner of phrases like " "A bear of a man", "Send a couple apes to straighten out his attitude" "Dressed up like a peacock"and such. And they exist because over time, people realized that people acted in ways very similar to their animal brethren. Hell, most human mating rituals are little removed from those of animals at all. Just more expensive.
you might not like Trump being compared to an animal, but facts are facts. He is, as do we all, display/displaying very animal behavior. In this instance, he happens to be displaying very base animal behavior.
Edit:
In addition I would point out that the entire concept of 'civilization" is to civilize. And to civilize, one has to move above or beyond the very behaviors of animals. Thats what civilization 'is'.