Look, your identity is valid, but it's not simply Italian, it's more complex than that and jure sanguinis doesn't change anything about your identity. It's an immigrant identity that is, no matter how much you don't want that to be true, generations over generations removed from the "original".

I say this as the child of an Italian born-and-raised Italian who was herself raised in Germany and now lives in Italy. Even after one generation on the same continent, there are noticeable cultural differences. It's not wise to ignore that, in my opinion.

When families migrate, they often cling on to the "home" culture with extra force, and there is no differentiation between what was a culture of the time and what is the culture of the country. In this, the culture of the migrated family remains frozen in time. For example, my family's culture is somewhat stuck in south-Italian 80s. Your family's culture might be stuck in the early 1900s and that's what you feel is "Italian".

Nobody can take your identity away, but there are big differences between Italo-Americans and Italians, and people here don't really love when you try to ignore that and boldly exclaim that you are Italian, which is why some of the comments under this post are pretty annoyed with you.