Well what are your thoughts on reducing Gaza to rubble? On forced starvation and repeated forced relocation of Palestinians? On killing called "mowing the lawn" by Israelis? On expanding Israeli terrority to include the property of neighboring countries and calling it "Greater Israel" ???? Where do the Zionists (many who are athiests) plan to stop, if ever? Does Netanyahu refrain from peace agreements simply to remain in power? Why does much the Israeli population reject all of this spilling of innocents' blood?
My thoughts are that when Hamas kidnapped 200 Israeli citizens including babies and massacred a 1000 more, which included mass rapes, beheading and burnings, there was no choice left to Israel but to remove that organization completely.
Because Hamas as the governing political party in Gaza, decided to use all of their resources to build fortifications below civilian neighborhoods, this endeavour entails the destruction of entire Gazan neighborhoods. Not unlike the Battle of Berlin or the bombings of Dresden.
It's cliche to say war is terrible, but it is, that's why you don't start one, and that's why Israel always tried to do quick operations which amounted to nothing ('mowing the lawn' as you incorrectly quoted out of context). An advice Gazans have surely needed.
If you finally do start a war, you should really start a war you have a chance at winning. If even that isn't true, at the very least you don't go on such a barbaric rampage making your enemy extremely determined at removing your force completely, at great expense at your civilian population which elected you
Regarding starvation in Gaza, due to racism, media rage bating and general long cultural tradition in the west to scape goat a certain ethnicity, the perception is far different than reality. For example, a recent Gazan instagram account: