A lot.

Literally on Oct 7, Hamas tried to return civilian hostages, who the IDF killed. This is why Hamas changed policies to only give up hostages through 3rd parties. They reached out to israel to try and return hostages and were ignored. They reached out to the US to return hostages and were ignored. [1]

So for starters, the US could have pressured Israel to negotiate with Hamas to return the hostages.

As Israel started to show genocidal intent (for example, killing aide workers multiple times). The US could have at a minimum threaten to withhold aide. In fact, there are laws on the books that a country such as Israel committing war crimes is ineligible for aide.

Finally, the UN should have deployed peace keepers to gaza specifically to stop the genocide.

Actions could have been taken, but they weren't because our politicians are so bribed by Israeli lobby money as to turn a complete blind eye to it's misdeeds.

[1] https://www.haaretz.com/israel-news/israel-politics/2026-09-...

So you feel like after October 7, there should've just been a talk about what happened and some form of negotiation ?