Every single diet zealot seems to use the term 'this is how we evolved eating' in their argument to support their way of eating.
There's a couple of issues with this...
Number 2: whether you're a vegan, keto, carnivore or other, you could all technically be correct. Which kinda makes the whole argument a bit null and void.
If you're in the Hadza tribe in Tanzania you're an omnivore.
So what is the point?
The majority of us now have access to whatever we want, which means we are in the privileged position to eat what we want, when we want.
Feel crap after eating too much meat? Eat less.
Feel crap after eating too many carbs? Eat less.
Feel crap after eating too few carbs? Eat more.
Catch my drift?
The only ideal diet is one made up of real food. How that is balanced between different macros, or whether it is plant and/or animal-based is up to you.
How far do you go back? We evolved from fish way back when...so what did our fish-like ancestors enjoy and flourish on?
Whatever it was, it wasn't made in a factory.