I disagree that Hollywood “glamorized” mobsters.
Early gangster movies form the ‘30s portrayed organized criminals as schizos and overly well dressed (to the point of looking cartoonish) lowlifes that spoke in broken English.

Even in The Godfather the only “good” and “moral” mobsters are Vito, Tom (if you even consider Tom a mobster) and Michael, although Michael does get darker by the end of the series. The rest are a bunch of thieving, back-stabbing, sociopathic criminals.

Goodfellas shows this very well. Tommy is a sociopath that kills a teenager over a joke. And the others don’t bother to do nothing about it.

In Casino, the torture scene and the Santoro brothers’ gory death aren’t exactly filed as “glamorous”.

Donnie Brasco beautifully depicts them as broke hoodlums that would brutishly murder their own to move up. The Three Capos murder scene is phenomenal because it shows that these people are legit serial killers. It’s a clear contrast to the ”clean” and “professional” hit scene when a target is shot with a silenced handgun.

Anybody that finds these depictions as “glamorous” should seriously consider the help of a good therapist for I believe he’s a closeted sociopath.