Well.. that’s a highly hyperbolized statement. It’s still a very fringe/minority view.
Even if Israel didn’t have nuclear weapons no Western power would be willing to overhaul its regime or let alone invade it (and obviously there wouldn’t be sufficient public support for it either even in France or Britain e.g. even recognizing Palestine is not particularly popular https://www.jns.org/nearly-75-of-french-oppose-macron-push-t...).
I think there is a much widespread support for Israel than you think. And that the accusation of genocide are meant to silence this support as much as possible.
The US (and the UK) did massive damages to my country and particularly my region, while fighting against the Nazis, leveling cities and killing tens of thousands of French citizens. My grand parents had to flee on foot as far as possible from the combat zones on the request of the allies. There even was reports of hundreds of rape and even murders from US troops at the Liberation. And it was much much worse in Germany...
No one in their right mind would talk about the US pursuing a genocide against the Germans or the Normans.
We don't judge the US based on this, but based on the results they achieved and what they did after the war. I think most Germans also believe this.
I will also judge Israel based on what they do after Hamas is defeated. I hope they do the right thing, as the US did. And I believe they will and that it is in their best interest to do so.