This isn't what I mean by low brow, and criminals and gangers are not low brow subject matter. Some the most critically-acclaimed entertainments has focussed on criminality; The Godfather, Goodfellas, The Sopranos. You can definitely have interesting, witty and funny commentary in a game than the most popular lager in the GTA universe being called, Pißwasser. It feels like much of this is aimed at teens. ¯\_(ツ)_/¯
When you focus on the writing of the main characters, none of it is base and it feels a little out of place like because the main characters are more grounded. I'd add that GTA III, Vice City, San Andrea and GTA IV were nowhere near as base as GTA V.
Those are all examples of a higher order of criminals than what GTA focuses on. The criminal element that GTA focuses on are the same elements that the organized crime rings (Italian Mafia) in the movies that you mentioned frown upon and openly think of as basically lower life forms. The mooks as they are often referred to by the American Italian Mafia and in the past by American Italians in general.
Those movies are also a highly romanticized version of the Italian mafia with some peeks into how they operation and how brutal they can be but with more of a focus on romanticizing it's culture and behavior. Now part of that is purposefully done, the brutality when it happens is highlighted more and more impactful when contrasted with other almost fairytale bits of the movies.
The hood gangsters that are usually featured in GTA gangs lack most of the self imposed restrictions under which the Italian Mafia generally operated under in the US. They also generally lack the cultural background and links to the "old country". The older Italian mob families were formed from immigrants from Italy trying to protect other italians from racial prosecution at the time when Italian immigrants were considered undesirable, lazy, they take jobs from hard working Americans, corrupt good upstanding American women, etc. similar to the Irish before them. Thus their attempts at a form of internally consistent Honor and respect for hard working citizens (usually in Italian immigrant neighborhoods) which allowed them to feel some moral superiority when shaking down business owners and gamblers as the former could be viewed as taking advantage of new immigrants (and likely often did) and the latter could be bad influences and abusers of their famillies. Often overlooked by these same mobsters were their own familial abuses.
Ooof this is getting long, but it's important in distinguishing the source material from which something like The Godfather, Goodfellas and The Sopranos draw from.
Hood gangsters lets call them, are a different breed. They are completely out of place in a movie such as those that you mentioned other than stereotypical bad guy bait. About the only similarity between them and the Italian mafia is that they often espouse family values. However, they do it differently. Whereas most Italian mobsters would put the entire family and family tree on a pedestal, hood gangsters often only have their mother and possibly their sisters and maybe brothers on that same level of respect and honor. The father figure is often missing in their lives and often reviled. It's a dynamic that when growing up gives a different perspective on who and what in the world is important. There's no father figure that might attempt to show them how a "proper" man of the family should act. Instead they learn these things from other men in the community, often members of the local gangsters although the lucky ones will instead latch onto successful businessmen or clergy in their community.
Yes, Italian mobsters in their formative years are also exposed to the gangs in their area, but it doesn't represent
all of the male influence on their lives as they often have a father figure (good or bad) within their home. While this is less true now than in the past, the movies that you mention generally focus on those mobsters that grew up in stable, if sometimes troubled, families.
Contrast this to some movies that don't focus on highly organized and structured crime. Skinheads, The Warriors, Romper Stomper, Assault on Precinct 13 or some more appropriately themed movies like Colors, South Central, Boyz n the Hood, Menace to Society. Yes still romanticized/fantasized to some extent, but closer to the "lower" level of criminality that the GTA games focus on and more closely resembling the gang members that I would party with down in Compton and East LA back in the 1980s ... the same type of element that GTA generally focuses on.
Something like the Mafia line of games focuses more on the higher level of criminality that The Godfather, Goodfellas and The Sopranos focus on. There's a few Italian guys around where I live that like to act like that ... or maybe they aren't acting and they are from that background but got out somehow. Dunno, don't care, they treat me with respect, I treat them with respect.
Ooof, this is way too long, but maybe people just don't really understand that while GTA is attempting to satirize elements of American society, they do so by presenting some elements as close to the source as they can ... and that includes dialog and how characters in the game speak. The type of humor presented, etc. It doesn't matter if someone considers it low-brow, offensive, whatever, they are getting it as close to the "hood" as they can. You don't sanitize these things (beyond a level required to get it published), alter how they talk, change what they talk about without losing the connection with what you are presenting. Although I will say they do self-censor a lot in the games as there is conspicuously absent a lot of racially charged dialog (both light hearted [jokingly said] and not [derogatorily said]) that you'll often hear in the "hood".
Regards,
SB