The war room loves this phrase, "All cultures are equal," but I have honestly never heard anybody use that phrase outside of the war room. Where did the obsession with this phrase come from? It seems like a phrase that is mostly perpetuated on here by alt-right guys as a straw man to burn down with white supremacist views.
It's kind of like attacking the phrase, "All men are created equal" by saying that it's obviously not true. Some men are smart, some are dumb, some are tall, some are short, etc.
The phrase is not meant to be interpreted that way, it's just meant to communicate the idea that people should be judged on a level playing field. I interpret "All cultures are equal" (if anybody actually was to say that) to mean that all cultures should be judged on an equal playing field. Not that they actually are all the same.