Because giving $8 million a day to the only assured friendly nation in the middle of the most unfriendly place in the world toward freedom, democracy, and liberty makes all the sense in the world, that's why.
What a dawg-faced deception:
The Staggering Cost of Israel to Americans
Excerpt:
"If Israel were using these funds for a good purpose, one could debate whether the price was worth it. But
Israel uses most of the money to prolong a 45-year military occupation (which regularly involves gross violations of international law),[49] commit egregious human rights violations,[50] and destroy billions of dollars worth of Palestinian homes and infrastructure[51] (resulting in still more U.S. tax money being sent to Palestinians to rebuild demolished homes, hospitals, and schools), while building illegal Jewish-only settlements on Palestinian land.[52]
It makes the prospect of peace ever more distant, creates dangerous hostility to the US, placing Americans in peril, and puts the US Congress in violation of the Arms Export Control Act,[53] all for the sake of campaign contributions.
There is no good reason to keep throwing good money after bad in a failed, ill-founded policy.
It's long past time for a fundamental rethinking of the American government's blank check to Israel."
And this "fundamental rethinking" is actually beginning to transpire:
The National Summit to Reassess the U.S.—Israel "Special Relationship!"
Israel lobby major factor in all US policies and statements: Alison Weir
"There are things happening in the US that are starting to be a factor: on Friday there is going to be a national summit in which high level experts, national security experts, former CIA analysts, a number of academic scholars and former Congress people and other authors will be for the first time assessing the US Israel relationship and how it impacts Americans."
"This is an unprecedented gathering. More and more Americans will be paying attention to it and will be
discussing what these policies mean for the United States rather than for Israel and that will no doubt affect the relations with Iran and those policies concerning Iran as well as other places."