You begin your response with a very inflammatory and biased phrase "Zionist regime" and go from there. In your attempt to be fair (which I hope you are trying to do) you immediately show prejudice.

Next, there are a great many reasons why America is so entwined with, and protective of, Israel. Antisemitics like to believe some nonsense about wealthy Jewish influence, which is a very old saw that holds no water. This is a very complex subject that cannot be explained away by posting a bunch of youtube links. You would have to study the history and geographic import of the Middle East without the bias of hate and prejudice. And you would have to understand the trade of technology from medicine to computers to weaponry to transportation. It is a very, very involved relationship.

When people only have a superficial view of the American-Israeli relationship they boil the issue down to simple and erroneous causations.