Honestly I have a hard time believing that a company that would have sensitivity training would allow any of that behavior to continue beyond a single offense.

That being said, my point is that you are not helping anything regardless of the validity of the original complaints. You display flippant indignation by finding this "hilarious". Would it not help educate your co-workers to treat them reasonably instead of sarcastically confrontational? Has that approach ever yielded results?

That's one of the main things about outrage culture. Outrage will never convince anyone that they're wrong, it will only make them double down on their original ideas.