How do you go from "Sugar should be consumed in moderation" to "Sugar should be ripped out of all foods and the body doesn't need carbohydrates"?
Why jump from a reasonable and sound observation to some ridiculous extreme nobody asked for?
The body doesn't need carbohydrates to function.
> The body also requires dietary sugar to function :) https://en.wikipedia.org/wiki/Carbohydrate
Again, the body does not :) https://en.wikipedia.org/wiki/Ketogenic_diet
Ketogenic diet doesn't mean stripping all carbs from your diet (which is, again, effectively impossible). It just means burning fat. It's also wildly unhealthy if you don't have fat to burn. Only obese people should engage in that sort of diet.
You mean, is there any evidence aside from every person who manages their diabetes through diet alone? Or the various pre-industrial human cultures who ate virtually nothing but fish and small game because their climate was notoriously resistant to agriculture and fruit trees?
> It's also wildly unhealthy if you don't have fat to burn. Only obese people should engage in that sort of diet.
You seem to be confusing the ketogenic diet with starving. That's not how it works. If you deplete your fat body's stores and get hungry, you simply eat some fat and then your body will burn it for fuel. If you decide to eat much more fat than your body needs, your body will store the fat as fat. But it won't do it quite as readily as with sugar/carbs, and you won't get food cravings mere hours after eating.
We have longer life span. We are healthier then them. And we have also bigger muscles for those fitness oriented.
> The ketogenic diet is a high-fat, adequate-protein, low-carbohydrate dietary therapy
Keto diet is low-carbs - not completely carbs free.
Only in so much as that it will built glucose out of other things you eat if you don't eat carbs separately. Your body runs on glucose which is a carbohydrate.
Sugar is naturally occurring in basically all the food we consume. Good luck ripping it out. Good luck getting a functioning body without consuming carbohydrates, either.
> Literally every study, from rats to humans and from obesity to cancer to gut microbiome to mood to oral health to chronic inflammation shows that dietary sugar is harmful.
The body also requires dietary sugar to function :) https://en.wikipedia.org/wiki/Carbohydrate
> Sugar should be consumed in moderation akin to alcohol,
Alcohol is a literal poison that you should not consume at all. Sugar is a basic dietary requirement. Of course, all nutrients should be consumed in moderation, but that's not unique to sugar in any way.