Without that, they wouldn’t constantly be attacking other countries.

I don't know that I agree. At this point, I think between the instability of their neighbors and the built-up siege-state of Israel itself, it would continue acting like a rogue state even if the US cut off funding.

Which is not to say that we shouldn't cut off funding - we absolutely should. And extend that 'umbrella' of protection to Israel's neighbors, not Israel, which might at least reduce blatant incursions.

But I suspect that the response of Israel to reduced or eliminated US support would be to become even more militarized, not less.