It is not a matter of "undoing the damage". There is nothing that can be undone. No future president will get rid of a single department. The federal government will keep growing. The only thing we can do is try to change the culture back to capitalism and be successful and hope the masses come around and embrace that success.
As for the non-Trump candidates, I am glad that Trump is clearing a path for an outsider like Cruz. But none of them including Cruz want us to prosper. Cruz wants us to globalize even more. The problem with that is that Americans can't compete with slave laborers.
Where do you get this crap from? Aren't you the guy who believes that so-called "man-made global warming" is a proven fact?