To add context: the funds were not “given” as one might give humanitarian funding. The funds were Iranian financial assets that were frozen after the Iranian Revolution, accrued interest over the subsequent decades, and were returned as part of a legal settlement. I stake no position on whether this should have happened, just providing more specific color to the situation.

that is true, but it was still a large sum of money given to an authoritarian murderous regime, was it not?

That's an extraordinarily loose definition of "gave"