Well some simple googling puts the IDF casualties at somewhere between 300-400 they might very well be undereporting so maybe the real figure is 500-600 but it's not going to be 5000-6000 though
Even 500-600 let alone 300-400 is not a lot out of a mobilisation of 100,000's especially when it seems obvious this is a regime and a military that feels itself to be on a mission.
Plus this is after 2 months of fighting, the IDF has not and probably never will be able to totally end Hamas ability to fight but it has degraded it. IDF casualties aren't going to start rising exponentially, 2 months from now the figure will be higher but I doubt it will have doubled never mind gone up by a factor of 10 or 20.
So what if shit as you say hits the fan in Lebanon, Hezbollah can make a pain of itself and kill Israeli soldiers and civilians but it can't invade Israel or threaten its territorial integrity and any injury will be returned tenfold. As for the harm inflicted on the Lebanese well no-one cares now they won't start anytime soon.
As for the Netanyahu Govt well it won't achieve the unachievable but it doesn't have to, it merely needs to reduce as much as possible the possibility of another October 7 terrorist attack. Peace to Netanyahu is a end to terrorist attacks not a just solution. Turning Gaza into a wasteland and fully locking down the border will largely do that.
No you haven't offered any evidence, you've offered perspectives on historical events. I cast no doubt upon them but they're not relevant going forward from now any more than the various YouTube videos offering either the Israeli or Palestinian 'side' of history.
And I say this with nothing but the greatness of sadness but it is your belief that there is still any possibility of some kind of solution that will be fair and equitable to the Palestinians.
I cannot see any way this will not end without the effective if not actual obliteration of the Palestinians.