Have you ever had a dream that you, um, you had, your, you- you could, you’ll do, you- you wants, you, you could do so, you- you’ll do, you could- you, you want, you want him to do you so much you could do anything?

If you are reborn as a new person with none of your previous memories, then does it matter that it's still "you"?

So why does overpopulation/underpopulation exist?

If you Instantly respawn as you die would that not mean there's a finite amount of people on the planet?

Otherwise new people can't exist without someone else dying.

With your logic the ratio is 1:1.

In reality the ratio is higher or lower which determines over/underpopulation.

That's how I see it.

You're speaking of reincarnation? There's not really any reason to think that's a thing in consensus reality.

Why and how would we know if something like that could be true? Like imagine I say, yes! When we die we get a new life and such and such. Or, no, we die and we go to heaven and play the harps for eternity. What kind of evidence are you accepting to take something as a truth?

What even is "you"?

The way you used pronouns, 'they' and then 'we', suggests you are asking if they become a new person in the eyes of us who haven't died. Is that really what you meant?

How would we possibly know?

I hope not, I wanna become a corpse and fertilize some cool plants.

Even Stan pines can't answer this

With the history of humanity... Imagine hundreds of people watching everything you do trough your eyes