What it really boils down to Andy, in your opinion, is choice. You have a problem with people choosing to support the Azzurri.
But this leaves out people like me, who didn't actively choose to support to Azzurri. Like I said, they told me to support the team and I guess it somehow stuck. I don't remember not supporting Italy, I definitely don't remember picking a national team.
I was introduced to Juventus pretty much the same way. Lots of young boys don't "choose" a club team either. I could be an ass and do some smart ass reasoning here and say that you're not a true fan because you probably did choose to support them, but I find that bullshit.