I SERIOUSLY have no clue why anyone (LCN, Hollywood, Etc.)

If presidents/congressman/government officials can have an army of bodyguards (secret service) and some random Joe Schmo can get to them, NO ONE is safe. It is a false sense of security.

Does anyone recall a story of when some person decided to attack a known high ranking member of LCN, with their FISTS, while the guy had a bodyguard?

Hoffa and Provenzano comes to mind but I don't think Provenzano had a bodyguard in jail and look what happened to Hoffa eventually. Did someone go to bat for Jimmy for this infraction or was he whacked not long after this?

I am sure there are examples but, they would be committing suicide by doing that.

A bodyguard cannot stop bullets and if someone/anyone wanted to take out another, they would methodically plan it out and execute.

JFK was taken out in a VERY SMART (Criminal smart) manner.
From a distance, with a rifle.

Reagan was inches away from getting killed.
Bobby Kennedy was killed while campaigning.

Just my opinion!