I believe this is an odd unrealistic approach.Israel is what USA is stopping. We're stopping Israel already. That is (ironically) what we are doing by keeping it from direct attacks (such as from Iran). Look at the big picture. Israel doesn't have enough territory to defend itself effectively, and its presence is religiously offensive to Islamic countries. This means if attacked Israel must take new territory. For example if Iran doesn't stop, Israel must react. Whenever Israel gets attacked it always takes territory, which is intelligent. This is however inconvenient for the USA.
USA wishes we hadn't sponsored Israel in the first place. The unending religious war of Islam against Jews particularly in this zone is very, very likely to force Israel into open war again someday. This will lead to Israel annexing more territory.
USA does undermine Israel in other ways. We support Hamas through the UN. We use the UN as leverage against Israel when there are resolutions against Israel. We support teaching Gazan children to hate Jews. We support (through the UK) anti Israel propaganda. Essentially we are working to neutralize the situation without a large scale war. We work to make Israel less Jewish. We oppose Israel through our college university programs.
Israel does not take territory except over time the goal of occupying Palestine as part of Israel. Yhis is the traditional goal od establish the Jewish State for Jews only. Slowly the Jews are ethnically cleansing Palestinians form Israel.
The USA has complete and overwhelming blank check for anything Israel needs to accomplish its goals. For Israel it is just a matter of time.
The support for Hamas by the West is humanitarian and not military. If Trump is elected this will end. The USA objects to Israel's Old Testament military inhuman methods of warfare, but nonetheless it will always support Israel in the end. Old Testament vengeance rules the battlefield to crush Hamas
Both sides are intransigent in their goals, and the bottom line methods of the Muslims is no less inhuman and brutal resorting to inhuman terrorism in recent history, which may continue when the Hamas fails.