These days, in some families (Genovese, Gambino) you still have to be 100% Italian to be made. In those weaker and smaller...on your dad's side.
The Genovese family is known for having stricter standards, though I'm not sure how much enforcing the 100% Italian thing comes into it. As for the Gambinos, Andrew Merola isn't 100% Italian and he was made. To say nothing of Junior Gotti.
Mods should mind their own business and leave poster's profile signatures alone.