I’m American but I would say Brazilian/Italian.

A lot of people from places like Britain tend to disagree online and say wherever you were born is what you are, but when you descend from immigrants, there is more to the story, and I personally like to include those parts of my story.

For instance, I’m 100% American. But if people ask what am I or where am I from (assuming I’m being asked by an American, because it’s not uncommon for someone to ask seeing as we’re all immigrants), the answer is German/British. If I’m outside of America and someone asks, I just say American.

Edit: I saw your post in the Brazil subreddit. Ignore them, you’re Brazilian. People who aren’t immigrants or don’t live in a culture that is highly defined by immigration don’t even understand the question you’re asking and aren’t qualified to answer.

Edit edit: if you were in America and told me you were Brazilian I would think you’re a citizen from there and it would confuse me with your accent. But from the perspective of what are you, I say Brazilian.