While many people do like Donald Trump (about 30% right now), the Electoral College is the reason Donald Trump won not the people.
It is an outdated and antiquated system that was devised in a time before people had ready access to massive amounts of information. It was put in place when voting was being expanded beyond rich white men. It was meant to stop unqualified individuals from taking office i.e. those who are not 35 years of age, a natural born citizen (or a citizen at the time of the Constitution’s adoption), and been a resident in the USA for 14 consecutive years. It is also supposed to stop someone who is not fit from taking office (you can decide if that worked or not, many psychiatrists say it didn’t work like it was supposed to as Donald Trump is not mentally capable of being President).
The Electoral College was created in 1787 and works off of each states population. That is a problem in itself because we update a states populace every 10 years, but a President can only serve at most 8 years. This means as people leave and enter a states populace they are or are not accounted for in the population data which means they may not be accounted for in an electoral vote.
People say it is to make sure everyone gets a say in who becomes President and it won’t be heavily populated states like Florida and California that chooses the President, but truth is it should be one person, one vote and the Electoral College stops that. Then you run into swing states because of this. They are like Ohio and Pennsylvania and even Florida still because they have a decent amount of electoral votes and are not all Republican or Democratic in their voting histories so they could swing either way which makes them more important then other states, thus leading to the same problem as before of a few states choosing who becomes President rather than one person one vote. Many states work off a system that says the popular vote in that state chooses whom the state picks as President which means that ALL electoral votes go to that person because most states don’t allow for splitting the electoral vote (Maine is a well known example of a state that splits the vote).
So, if say the vote came down to 1,653,021 people for Hillary Clinton and 1,653,020 for Donald Trump and the state has 16 electoral votes then all 16 have to go to Hillary Clinton because of 1 persons vote, thus 1,653,020 votes don’t count, truthfully, only one persons vote counted.
Then you run into what happens if your electors are faithless and don’t vote as they were supposed to. Say your state was supposed to vote for Hillary Clinton like the example above but instead two chose to vote for Donald Trump. There is no real recourse to be had. Sure some say a financial penalty will be imposed, some even say jail time but that has never actually been enforced and probably wouldn’t stand up in a court of law if someone contested the punishment. All of this is not even touching on the fact that we the people don’t choose the Vice President but the President chooses who will be sitting next to them as VP (another antiquated, wrong, and problematic situation) and then the Electoral College votes for VP too but that is a whole different topic and a long one at that.