Let’s say that Hamas is 10% of the population - I don’t think it is, but let’s use that number.
The Palestinians are already on the verge of famine. This will make things worse, and disease is absolutely going to decimate the population.
Decimation was the Roman practice of killing 1 out of every 10 mutinous/deserter (i.e., guilty of something) soldiers to punish an entire legion while still keeping it operational as a combat unit. Here we have the opposite. It is killing 9 innocents to get to also kill 1 additional (very hypothetically) guilty person.
This is the saddest “um ackchyually” I have ever written.