First off, Trump is a narcissistic sociopath who does not give two shits about anyone but himself and himself alone and he will gladly throw everyone under the bus if it helps him in some way, including his supporters that damn near (if not outright) worship him.
Second, the very notion of Atlas Shrugged in the first place is absolutely laughable given just how little actual know-how industry leaders actually have on how to work any kind of society or state and more than likely tear themselves apart given just how narcissistic and or man childish-like so many of them tend to act in society today let alone how likely worse they’ll be in a society controlled entirely by them. At best they’d just create a real-like version of Bioshock’s Rapture but more than likely it will self-destruct long before that and kills most of the attempted real-life Atlas Shrugged then survive a supposed apocalypse due to the insane delusions of an abusive narcissist like Rand.
As for the last part, “restore America’s greatness” is a vague as hell term to use but no doubt you meant “restore America back to the good ol’ days where White straight Christian rich men can and do whatever the fuck they want and women, minorities and LGBTQ people knew their place and shut up” which mind you, isn’t all that great, and frankly just more bullshit fascist talking points since a key part of fascism is a mythical past to idolize, which I and so many others firmly don’t believe in.