Hey! I grew up in one of those neighborhoods - I resemble that remark! LOL!
Not trying to make this political...
I had several childhood friends like this - over nationalistic towards their ethnic background, carrying a degree of racism towards those around them who are not Italian. They got an education when they went to Italy and got snubbed (or worse) by the locals, got a larger education when they went in the military and pulled that shit in boot camp, especially those who thought they were bad-asses and wound up on Paris Island.
When I first moved to California in the mid-70s it was entertaining when east coast Italians with an attitude confronted a few local "Homies" around my neighborhood.
There were two local Mexican gangs that ate nails for breakfast....
"Guido - you're not in Bay Ridge anymore."