There will always be taboo words and euphemisms that skirt around saying those taboo words. It's the nature of taboo words that changes throughout time. During Shakespearean times, the ultimate taboo words were religious oaths. So, you get euphemisms like "zounds" from "God's wounds." Now, most minced oaths like "gosh darn it," "gadzooks," and "gee whiz" sound completely harmless and even childish because the original oaths that they were referencing are no longer taboo. Then, you have your obscenities like "fuck," "shit," "cunt," "asshole" etc. I've always associated Victorian times where people were overly uptight about sex. I mean, we're talking about a society that have terms like "self-abuse" to mean fapping. And now for the present, the taboo words have shifted away from obscenities and onto racial/sexual/gender racial epithets, no doubt because society has gotten less uptight about sex while being more uptight about giving various minorities a chance to be not shouted down by the majority. When I grew up, the F-word exclusively meant "fuck," now the F-word can mean "fuck" or "faggot," and I won't be surprised that in the future, the F-word exclusively means "faggot," with "fuck" being considered as an impolite word. The number one taboo word in contemporary American society isn't "fuck" or "cunt," but "nigger." And taboo words will probably shift away from epithets to something completely different centuries later.
Yeah, I'd love to see how this develops later on. But if I'm understanding right, these are words that were originally taboo and became milder with the loss of connection to the original taboo. Any thoughts on words that were originally the new polite form, then relegated to taboo to make way for the next one?