... [Americans] have become a nation that may defy every foe but that most
dangerous of foes, herself, destined to a majestic future if she will shun the excess and perversion of the principles that made her great, prate less about the
enemies of the past and strive more against the
enemies of the future, resist the
mob and the demagogue as she resisted Parliament and King, rally her powers from the race for gold and the delirium of prosperity to make firm the foundations on which that prosperity rests, and turn some fair proportion of her vast mental forces to other objects than material progress and the game of party politics.
Enemies are a bit dumb, lurching or charging towards West in an attempt to
mob him, which means they are rarely
dangerous in small numbers, but get a few together and things get more hectic.