There's a whole iceberg of how deep it actually goes that you don't see.
Even in American movements that had become completely detached from Christianity you can see the elements of "Protestant ethic" or "Puritanism".
The modern woke culture and cancel culture is purely built on that. It's based on the moral outrage that a person causes to the "puritan sensibilities" even if they're not the Christian sensibilities. In this context calling someone a racial slur or one of the myriad of -phobic terms or just doing something that's not acceptable for them is the same kind of defilement of morals as with Christian moms losing their mind over Pokemon or some other game.
It wasn't from this video, but when I first learned about this fact in American culture and started to see it through this lens it all started to make sense.
It's literally everywhere in their games, music, movies, online discussions. Obviously not everyone adheres to it in a strict sense, but you can see it in their subconscious process.

This American protestant ethic is not a set of morals or values. The morals and values can be anything, even very unchristian ones. The American protestant ethic is the way of application of your morals and values to the world around you.
"Those that believe my set of values are morally superior to those that do not."
"Offending my values even passively or unintentionally calls for an attack or even mob violence from my fellow morally superior peers."
"We must always be above those that are morally evil, by attacking them and self-promoting ourselves."
"The set of morals that you adhere to has to be a central point of your identity and you must build your entire life around it"

There's lots of things that I had probably missed but that's my take on it.