You do know, I hope, that the IDF has said that they don’t want to completely destroy Hamas, much less destroy Gaza. Their reasoning (and this is from the IDF) is that Hamas will be useful to control the other miscellaneous terrorist offshoots I’m Gaza.
They do, however want to severely degrade the capacity of Hamas to launch these rockets into Israel and also destroy their attack tunnels.
A consensus is building in Israel that Gaza should be occupied and Hamas destroyed.
I suspect that the only reason it has not been articulated by Netanyahu is that Hamas, as an appendage of the. Muslim Brotherhood, is an ally of Obama and Israel is trying to keep his wrath at a slow burn until osrael’s actions have been accomplished.
There are no voices in Israel calling for preserving Hamas as an objective of this war.