I mean asymmetrical warfare is a messy affair. Hamas gets new recruits who are angered about their family and homes being destroyed. Big nations typically don’t win these kind of engagements in the modern era because at least to modern sensibilities we don’t really want to see pointless slaughter and genocide, this isn’t to advocate for it, quite far from it but historically typically you would have to be ruthless to subjugate people but thankfully modern sensibilities say that is pretty fucked. So really this will either end up another “forever” war or one of the sides will be wiped out entirely.