Would he have ever been the boss if were not related to Gambino?

If the answer is NO

Then would it be safe to say he never should have been boss in the first place?

I am asking a question ???

I am pretty sure the answer is
NO he would not have been boss..

He killed his Son in law for making fun of his BEAK
?

He put Tommy Bilioti in as boss when he went away.
The guy was his driver and thug, certainly NOT boss of the largest and most powerful crime family.

Under his leadership the family was divided into two factions.

If he didnt get killed he would have gotten 100 years in jail.