Microplastics are the new lead, and screens are the new tobacco, in my opinion. Overuse of sugar in processed foods is the new version of how they’d cut food with inedible stuff like sawdust back in the day.

Can’t you think of examples of views that were fringe but became the moral baseline?

Yes, I can, but I can’t think of any that were extreme despite being the most widely held views in a given society, because that’s an oxymoron. Once something becomes a widely held view it is no longer extreme.

The former, by definition, because the vast majority of society does the latter. Extremists always try to reframe themselves as the moderate ones and say mainstream society are the extremists instead, so I’m not surprised you’re saying this.