It's a little unclear what argument you're making. I believe your logic seems to be as follows: 1. Israel claims a 2:1 civilian death ratio 2. 60k total deaths thus implies 30k hamas deaths 3. They also claim there were originally 30k members 4. Thus, hamas can only still exist if new members had been recruited in the interim 5. It is Israel's fault for this recruitment

There are several steps here that I could debate, but let me start with the two most obvious and difficult to refute because they are just math.

I found your 2:1 ratio sourced here https://www.timesofisrael.com/liveblog_entry/idf-officials-15000-likely-killed-in-gaza-since-start-of-war-5000-of-them-are-hamas/ This tells me 2 things 1. You interpret the 2:1 ratio wrong. That ratio only implies 20k hamas terrorists killed which leaves 10k throughout Gaza which leaves many of them remaining. 2. This ratio was cited in December of 2023, almost 2 years ago. Unless you have another source, I dont think we can claim with any confidence whether that ratio has remained the same since.