Western leaders didn't mind that guy in the 1930s for a good while until his dehumanizing got too carried away. After financing him, supporting him and allowing him to gain power for a good while, it then began to get too difficult to get him out of power .... then things got carried away .... and you know the rest.

If the US sanctioned Israel, the very next day the Gaza massacre woull stop and Bibi would out, and within a week probably in jail, not only because Israel's oldest ally turning against them like that would be the stronguest possible message that they fucked-up, but also but because losing support from the US would be seen as an existential threat for Israel.

The talkie-talkie from the US Administration that's as far as the US goes at the moment (accompanied by the very oppsite of the words in actions such as military and diplomatic support) is rightly seen as hot air produced merelly for Biden's political convenience.

He'd be gone by lunchtime.

Why?

There's this narrative that Israel is completely dependent on US aid and would be powerless without it, but I don't think that's obviously true. What military is going to meaningfully threaten them? Jordan has no interest in another giant wave of Palestinian migrants (given that the last one led to a coup attempt), nor does it have a significant military. Lebanon hardly has a genuine government. Syria is a mess. Egypt does have some legitimate power, but also has no interest in a massive war right next to them.

The only regional power capable of meaningfully threatening Israel is Iran, and Saudi Arabia and the rest of the Sunni coalition do not want massive expansion of Iranian influence.

Not to mention, Israel has already defeated all of its neighbors, simultaneously, twice. I'm fairly confident that the only thing that would actually happen if the US stopped sending aid is a bit of a dent in the Israeli economy.

Bibi taking the hasbara into his own hands

On one hand the USA does this all the time (cough Imran Khan cough)

Mainly to leftist governments though, and Bibi's a right-wing extremist. He's the sort of person the US usually installs, which is why there's no way in hell they'd try to overthrow him

Sorry but the US isn't exactly the pacifist and/or peacekeeping nation, you think they are. Not to mention that they are trying to spy on their own allies, tap their phones, install backdoors in network equipment, persecute whistle blowers, etc., meddle with other countries internal affairs, trying to stifle the competition of other countries economics and what not. And now supporting full blown genocide and sending arms to Israel. And believe me a lot of people in the US were very happy when the UK left the EU.

So they are just a tad better than Russia in my books and I wonder what the world would be like without countries like the US, Russia, China.

The next major candidate isn't any better

Uhh, that assumes Biden is against the genocide.

Yeah, the reverse is more likely. Bibi has Biden on such a leash that he'll give them anything they want.