As much as I actually hate to say this because it's the reality of the US, the support of Israel genociding the Hamas would've happened regardless of whomever was President. The US has given a ton of support to Israel in the past and we're considered good allies with them, so we would have probably let the genocide slide no matter what.
Do you think Trump wouldn't be for this or something? Or Hillary? Don't go all "gEnOcIdEr JoE" because you think this would've only happened with Biden - this would've happened because we are America.