I think Israel would stop being something the US would think about. And then the genocide stops...

I don't think Israel would stop doing what they're doing just because support stops from the US. They still have a lot of support from Europe and their own resources besides. They're a nuclear power, they have however much leverage they want.

The US should cut ties to at least partially absolve itself of responsibility for the genocide, but Palestine is not going to be saved until some global power is willing to stand with Palestine against Israel.