Yes, Israel owes the U.S. HaKores HaTov for the good it has done, but it is not a one way street. Israel saves the U.S. far more in research and development than it was given. Most of the money stays in the U.S. and provides jobs to Americans.
Israel take military hardware, refines it and gives the changes to the U.S., Israel prevented the old Soviet Union from dominating the Middle East, which greatly benefited the U.S. Israel provides the U.S. with priceless intelligence information that the U.S. would have to spend untold billions and still probably wouldn’t get.
Then there is all the scientific and other inventions and so many more benefits, too numerous to mention in a forum like this.
At the same time, the U.S. has don’t lots to harm Israel too, causing thousands of Jewish deaths. These phony “peace” processes and forcing Israel into suicidal concessions are but one example.
Even the Pollard situation. While Pollard was wrong, he gave Israel critical intelligence information that the U.S. refused to give, which was a violation of a treaty, just to placate the Arabs. Also, Pollards sentence was far more severe than sentences given to people spying for enemy states.
It’s not one sided and it’s not a clear-cut issue.