Patriotism is subjective, everybody has a different view on it, so did Vito as said above by other posters. However the people in the mafia cared about making money that was there key. If Patriotism made money for them or made them look good then they would do it if not then they wont give a danm.

Probabaly the old school gangsters wouldnt as they were more closed up and more racist (proabably due to the way they were treated before).