Trump was a very specific kind of disaster: a chaos agent, who lacked the wit, patience and executive function to recruit the powerful institutions of the US military-industrial complex to fight his corner.
1/
The kind of guy who demands the impossible and then fires and publicly humiliates any allies who fail to deliver - or dare to contradict him - is not the kind of guy who can build new, enduring, evil institutions.
2/
The best he can hope for is to get some trumpalike goblins into positions of power (where they will replicate his chaos, but without the broad impunity of the presidential office, resulting in a series of resignations and prosecutions), back by executive orders.
3/
The last months of the Trump admin were an orgy of executive branch rulemakings that dismantled public safety, health, labor, anticorruption and (especially) environmental protections.
4/
Trump is a debt kingpin. His MO is running across a river on the backs of alligators, hoping to move so fast that none of them takes a leg: borrow, refinance, restructure, borrow, blow town, borrow, restructure, bribe, blow town.
5/