Mussolini invented fascism, not Italy . Lots of Italians fell for it and supported it, the rest of the population - the vast majority - had to endure it and were straight up forced to live by its rules through persecution, imprisonment, violence, oppression, physical torture, displacement and homicide. Google the crimes of the Camicie Nere. Millions of Italians were killed because they wouldn’t accept the dictatorship. Look up the Partigiani fighters, they are the true heroes of the anti-fascist fight. Google the Fosse Ardeatine Massacre as one of many examples. Americans fancy themselves the saviours but they stepped in very very late when all the hard work had been done already by the Partigiani. Italy is historically a socialist country, so to say “Italy invented fascism” is just wrong.
They don’t pay taxes to the city of Rome either, despite using our services and infrastructures: they use Rome’s sewage system but don’t pay for it, they use Rome’s garbage collection system but don’t pay for it - we are talking about private homes, not just churches. They don’t pay for the police service, streets maintenance and so on. The Vatican is s literal parasite of the city of Rome and the Italian nation as a whole. They are not an independent state, they depend on us for everything, hence they should pay taxes for the social services they use.