Cuomo is a moron. Fredo in Italy is short for Alfredo and is still a common nickname, unrelated to any mob movies. It’s not a stigma among real Italians and surely not an ethnic slur, unless you’re a Bumbling Bubble Boy like Fredo Cuomo.
He knows it’s not a damn ethnic slur. Here he is not giving a shit when Anna navarro called Don Jr. Fredo on his show.
https://twitter.com/DonaldJTrumpJr/status/1161099192355475456
Maybe if you cry to your big brother he can have this guy swimming with the fishes