yea, but why? it looks cool and all, but at least sugar gives you nutrients (energy calories).

The problem with modern nutrition is that people consume too much calories, not too few.

I'm pretty sure you're referring to the poor health outcomes correlating with high caloric intake, which afaict, come from people's consumption of heating oils (seed oils): https://en.wikipedia.org/wiki/Vegetable_oil

There's bound to be mixups what talking about sugars and fats. But these fuel oils are really really bad for us. We've demonized sugars unnecessarily. Right?

No, exactly opposite. Fats are good, sugars are bad.

Good fats are good, but there are bad fats too!

Get your nutrients from everything else, you don’t need sugar for nutrients, and that’s not why you put it in a chocolate cookie

The problem with monk fruit is that while it seems relatively benign on its own, many/most commercial products that claim to be "sweetened with monk fruit extract" actually have other cheaper commercial sweeteners mixed in.

If you google "monk fruit extract diarrhea" theres a good amount out there on this.

So you may switch to monk fruit thinking its a better alternative but actually be consuming erythritol anyway.

Ans that’s why I said “without the other stuff mixed in”.