- the survey recorded a surprisingly small excess of nonviolent deaths (in excess of what's demographically expected), this is discussed in the preprint. The much larger number of violent deaths is almost matched by births, so the total balance is somewhat towards shrinking, in that cohort
- however, it is well known that the violent deaths occurred overwhelmingly early in the war (so far) - according to the official Hamas statistics, something like 50% of all casualties are in the first 4 months of the war, out of 22 so far. Whether these statistics are over- or under-counted is not likely to make a dent in this huge imbalance. So as the war is ongoing - and it's already been another 8 months since the 14 covered by the survey - the death rate is still "collapsing" compared to average rate so far.
- at the same time, the birth rate has evidently not seen such a huge collapse since the first 4 months of the war; this can't be gleaned from the survey, but enough plausible reports (e.g. what @richardfeynman quoted) exist that point in that direction.
So if we consider the survey relatively representative of the entire population, the imbalance towards shrinking population after 14 months is already almost certainly repaired towards growing after another 8 months, because so few civilians are violently killed (again, compared to the first 4 months of the war) in 2025.
Additionally, your argument hinges on a single preprint paper that has yet to be peer-reviewed.
And finally, we don't even need to play these games counting up death tolls in different, increasingly creative ways. There are already reports from the UN and others directly confirming that Gaza's population has decreased: <https://www.politifact.com/factchecks/2024/dec/06/instagram-...>
Source: https://en.wikipedia.org/wiki/Gaza_humanitarian_crisis_%2820...
"On 18 January 2024, Natalia Kanem, the executive director of the UN Population Fund, spoke at the World Economic Forum at Davos, stating the situation was the "worst nightmare" the UNPF representative had ever witnessed, as there were 180 women giving birth daily, sometimes on the streets of Gaza, as the territory's health system collapsed"
Source: https://www.savethechildren.net/news/about-130-children-born... "About 130 babies will be born in Gaza every day over a month into a healthcare system driven to the verge of collapse, where some may not survive complications at birth. "
The 60k death count is likely an overcount, not an undercount, but this one I won't google for you. However you cut the numbers, and even if you believe in nameless ghosts under the rubble, there's been no population collapse.
As for the 60k count, every single source I have found suggests that 60k is a massive underestimate. You'll need to provide some very strong evidence to back up your claim to the contrary.
Regardless of the balance of birth and death rates, multiple sources have reported a significant decline in Gaza's population this year. So far, all evidence you have provided contradicts your own initial claim.