There is no standard Paleo diet. It's completely arbitrary and based on who your Paleo cult leader is.
Like any diet (I mean that in diary term rather than weight loss) for tje simple reason is there's no good science to back any plan up.
Go for a low fat low protein conventional diet and its an acult taught by different groups.
Its important to see how you cope on different diets and yes looking at what we use to eat and how food used to be prepared is a good starting block, until science catches up.
Then theirs the people who don't understand the basic concepts of things like paleo, which is in no way anti carb. Its anti refined carb. But rather than the "recommended 300g a day" it's generally in the realms of 150g a day.
Something Palo doesn't really look into (some groups do) is how carbs used to be refined and these days are refined in a totally different way.
For example flours eased to be mainly sprouted due to poor preserving. Then slow yeast meant fermentation was done over a very long periods. Its things like this that reduce what's commonly referee to anti nutrients and changes digestibility. Where now we have fast acting yeast, much better handling so virtually non are sprouted and then chick away husks and such like. Now Paleo usually says why bother with these because we aren't hunter gathers so might as well just avoid them. If you look at tribes that exist they go to a lot of effort to process these heavy carb sources that just can't be eaten unrefined.
The other thing people get hung up about is x-diatry plan says this is good/safe. But often leads people on to eat worse things, weather this is mental or physical really doesn't matter. Just avoid eating it if you no your body doesn't respond well to it, or it leads you to have cravings etc. Mental process are extremely hard to change and we have so much food available we don't need to eat such things.
Then we can go onto veg/fruit. Regardless how its grown (fertiliser or organispc) they are significantly reduced in nutrients compared to many decades ago.
And to make that even worse we've bread bitter and strong tastes out of them, which are usually the good compounds like antioxidants, and bred in sweetness in the form of sugars.
As we don't have time we've gone from moving slowly all day with a few bursts if energy, to being static most of the day and try compensating that with excess bursts of energy like running, which as we know wrecks joints with excess. And does come close to the amount if work we used to do by being on our feet nearly all day plodding around.
Then you can't take diet on its own, it needs to be looked at in connection with life style. From exercise to sleeping patterns. We now ignore the bodies signals and mess them up with artificial light.
So yes there's many competing views and its far more complicated than no carbs. But then again conventional diets are no different.
Let alone before we get to genetics and gene expression. Which personalises diets even more, lactose is a very good example of this, despite it being thousands of years old, many still lack the enzyme needed.
But go back to unrefined food and you'll be healthier than most and feel great, regardless of which direction you go. And chuck margarine out should be most peoples first step.
