As with most of his executive antics there won't be a lot of real change, it takes time to unwind processes in place. By the time real damage is being done Trump will be a foot note in history.  Further, market forces already in play will trump the Trump in a lot of cases.  Coal is a case in point.  No one really wants it, the jobs are gone.  He may as well have promised the long laid off buggy drivers their jobs back.