A mafia state puts loyalists on top and can't produce anything ( smart people leave) and smart people who think for their own can't be promoted.

That's also why a mafia extorts and doesn't run complex businesses in general.

Perhaps the US can survive this administration. But somewhere down the line it will become broken.

The non-complex mafia businesses is moot since the 50ies already. They run Vegas, most of big sports leagues, politics, secret services and restaurant chains. Everything which can effectively wash money.