dictator, in modern political systems, a single person who possesses absolute political power within a country or territory or a member of a small group that exercises such power. The term comes from the Latin title dictator, which in the Roman Republic designated a temporary magistrate who was granted extraordinary powers in order to deal with state crises. Modern dictators, however, resemble ancient tyrants rather than ancient dictators. (from Britannica [1])
In some ways this fits the election of Donald Trump - he was designated as a temporary magistrate who was granted extraordinary powers in order to deal with state crises - but in most ways it does not. Trump does not possess absolute power nor is a member of a small group which possesses such power as the plethora of court cases blocking his decisions make clear. The real important bit here is this:
> apparently 77M Americans
That is the majority of the voting public which you're lambasting for making the wrong decision. Here's a bit more on that subject, read it well:
Don't agree with the majority and think they should listen to you or your group instead? There are names for such forms of government as well, names which are generally portrayed as being opposites of the two I pointed at earlier.