This is amusing, but contains no surprises for anyone from New York who has watched Dopey Donald Chump for years.  His is a mafia mentality from top to bottom, one familiar to any New Yorker, and one visible not just in narcissistic huckters like Trump, but in many political figures in New York, as well as the actual criminals.  You take care of your friends; you kill, or at least fuck over, your enemies.  You're loyal to your gang, you keep your distance from the other gangs, though you do business as necessary.   You get things done for your friends, no matter what it takes.  No rules apply when it comes to your enemies.  Dopey Donald Chump is Don Corleone, but without the fictional Don's dignity.  There's simply no way he wasn't up to his neck in dealings with the mob while expanding his father's real estate empire in the 1970s and 1980s.  And I'm sure it came completely naturally to him.