You just never learn do you?
It's painfully obvious you didn't actually read the paper. You looked at a few words, saw a number you liked and called it a day.
But to top it all off, you're now comparing a paper trying to estimate soldier deaths from 3000 BC to present day. With your estimated childbirth mortality, from the beginning of our species.
I'm not short ~2 billion deaths, you've taken the liberty of giving yourself a 300'000 year long head start.
You have genuinly not managed to support any claim you've made. At all.
Even when you try to cherry pick a paper that is taking estimates of relatively modern European deaths and then extrapolating them across the globe over thousands of years. You can't even be bothered to read the part where the author of that paper doesn't even think that number is accurate.
I'll say that again. The author of the paper you linked. Does not think his estimates are accurate. He thinks the numbers are significantly higher. And hopes that his paper will be an incentive for future, more in depth studies.
That's not me handwaving or moving the goalpost. That's the author's own concluding thoughts. But you would have known that. If you actually read his work.