But these tunnels weren't secret and they did exist. "To mitigate the impact of the blockade on Gaza, a tunnel economy evolved and peaked between 2007 and 2013, with more than 1,532 underground tunnels running under the 12 km border between Gaza and Egypt. "
Source: https://unctad.org/system/files/official-document/tdb62d3_en...
That's just one source and likely an underestimate on the number of tunnels. You claim you were unable to find the easily-findable stats on the birth-rate in Gaza; this should be an easy one for you as there are multiple documentaries about these tunnels you can find freely on youtube, and you can see video evidence of the tunnels.
I am glad you now say that when people refer to Gaza as an open-air prison, they don't actually mean what they say, but are instead referring to a situation where there were hundreds of thousands (indeed more than half a million) documented exits each year between Egypt and Israel; to a place where the men with guns patrolling the prison were Hamas, not the IDF; to a place where if you were going to get killed, your killers were most likely to be Hamas, not the IDF.
Likewise, I appreciate you acknowledging that this is a special kind of genocide where the population hasn't really been reduced much.
And I also appreciate your deep skepticism of everything I say, despite the many credible sources I provide, and your complete failure to provide any primary evidence for your claims of tons of nameless, faceless, odorless corpses under rubble; your evidence-free claims that people born in Gaza today have a low chance of living; and your prediction that if you give Israel 10 more years, it will eradicate the population of Gaza. I look at population charts; this will be an interesting one to watch - care to make a bet on polymarket with me?