Yet it's not American "public" money that funded it.
And it's good to realize what 'public' means in this case: paid for by the general public. What companies produce is also (often) paid for by them, only not via taxes but through purchases, subscriptions, etc. Why should the software produced by companies be exempt?
American public money funded most of the tech that the whole Europe is depending on and extracting trillions of dollars value. Your American using Italian uni stuff is nonsense.