I think you have some faulty assumptions here.

Israel is very reliant on US support to be sure, but not totally reliant on us. They have their own military industrial complex and could ramp that up if needed, they have their own nuclear program, they would certainly have to scale back in some aspects, but I don’t think there’s much that we can do that would stop the war in its tracks. They’d change tactics, and Israel can be very creative, look at the recent pager bomb thing.

That’s not saying that we should continue supporting them and sending them supplies. I just don’t think it would be the quick end you’re thinking it would be.

If they knew the US wasn’t going to step in, we might see other countries, Iran perhaps, step up their involvement. If Israel starts getting desperate they might do some incredibly stupid things, like using those nukes, their mindset seems to very much that if they think they’re going down they’re going to take as many people with them as possible.

There is basically no chance you’re going to be able to land that boat at any port in Israel/Gaza and let 10k people loose. You’ll be stopped at the port if not even sooner, I’d honestly be a little amazed if you even be allowed to set sail in the first place.

While hamas is overall arguably on the right side of this conflict, don’t mistake that for meaning that they are an overall good organization. 10k Americans would make for some damn good human shields and hostages and they’d snatch every one of you up that they can. It’s not going to be as simple as just chilling in Gaza clogging up streets so Israel can’t get through (assuming Israel doesn’t just decide that your enemy combatants too and wow you down) you’re probably just as likely to end up as a Hamas prisoner and spend months or years in some pretty terrible conditions hoping for rescue.

And the idea that you’re going to get 10k to sign on is pretty laughable, I’d be amazed if you could get 100.

I’m just scraping the surface with a few thoughts off the top of my heads.