It's funny because it's true that presentism is the lens the left-wingers (and sometimes right-wingers) use to represent a distorted interpretation of history. It's a common fallacy in historical writing that activists use to make easily impressionable people more stupid.
New Rule: A Unified Theory of Wokeness | Real Time with Bill Maher (HBO)
It's time to stop judging everyone in the past by the standards of the present.
https://youtu.be/schuzjknjYE?si=AFtwjZHQNWCK5uuC