Sadly, there have actually been a lot of people, online and in real life, who have stated that the killing of Palestinian children is, in their eyes, acceptable collateral damage. There have been a lot of people saying the deaths of thousands of people are acceptable, that it's 'only' thousands, that the numbers aren't credible in their opinions, saying that what's going on is "precision targeting", justifying the detention and traumatising of innocent people, and so on. I've been told things that I know are happening, apparently aren't (spoiler: they absolutely are).
There is a lot of denial, minimisation and hate towards Palestinians, and a lot of justification of the actions of a government and military force who are openly attempting to destroy an oppressed people. For a lot of people, the only peace options they seem willing to accept for Palestinians are total surrender, exile from what remains of their homes, or death.