I think it's more that they don't want their own country to aid in a genocide. Even if the genocide could still happen without you, that's no reason to give up and support it.

That said,

• As a political ally the US protects Israel from being attacked by its neighbours

• it would also block any intervention by the UN

• Since Oct 7 the US has done over 200 arms deals with Israel and has provided at least 1,800 of the numerous 2,000 pound bombs they are hitting Gaza with (for reference the US only dropped one 2,000 pound bomb on Islamic State in its entire conflict with it)

• The US has also shared military intelligence/surveillance data with Israel, which is using AI to target Palestinians

Tell that to the numerous UN resolutions the US vetoed and the three aircraft carriers it and the UK just have casually stationed there.

Israel is 100% a client state of the US lmao. A rogue client state perhaps but one that the US still has more than enough power to reign in if it wanted to.