Iam pretty balanced in thinking fault lies very much with both sides, who both seem to be behaving in horrible and inhumane ways, with what's going on in Israel/Palestine, but I think YABVU OP.
For one thing, yes, there are many other conflicts, but most are not that controversial in terms of who is "at fault". Usually there is broad agreement on one or both sides being the cause.
With the situation in Israel, there has always been controversy about the idea of establishing a state like that, in that particular situation, for all kinds of reasons, and many people have had strong feelings on both sides.
Recently however, some new elements are in play:
CRT and DEI type theories, and anti-colonialism have taught a lot of younger people that anyone who is "brown" must always be the oppressed, and also righteous, in any conflict. Many of them seem to have little idea about the realities of the situation and will simply defend anything the Palestinians or Hamas does, no matter how awful.
Political tribalism has increased to the point that many people don't even seem to think it is ok to see issues as complex, or that there may be issues on both sides. It's just a "My side good" way of thinking. ANyone who disagrees is demonized as evil.
Performative virtue is hugely big on the left now.
I think no matter how you slice it, there is some horrible stuff going on from the Israeli side on this, and they are seen as the stronger, more technologically advanced, able side, which is a fair assessment as far as it goes. (And there are a lot of Israeli citizens who feel this keenly as well, it's not a far-out opinion.)
Also, many in the west have no experience of war or living in a war zone and don't understand what it involves.
ALl this means is a lot of people are seeing this in a very black and white way, and feel their political tribe requires them to be very performative and vocal in condemning Israel.
The fact that many on the right won't acknowledge any wrong on the part of Israel is also a problem - the two sides drive each other to take on more extreme positions.