That's not a valid argument.
If you support the Italian National team even if you are not the least bit Italian, you might as well believe in the Tooth Fairy. Why? Because you're living in a land of fantasy. You're trying to experience something that is not possible to you and not even applicable to you, considering you have no stake in Italy as a nation, and don't have citizenship.
What happens to fans like Fabiana is that they claim they support their own nation's football, but find themselves rooting for the Azzurri far more considering that side competes in more competitions. So after a sufficient period of time, fans like her become conditioned to expect very little from their own side, not supporting them to full effect. They might not know it, but their support of Italy will eventually overtake that of their own nation because that is what they are used to. In Venezuela, they're conditioned to accept mediocrity, and since that is what they expect, that's what they get. And the tune never changes.
Instead of wasting time supporting a nation you have no ties to, strive to make the football in your country better.