Do you want someone else to win just because you dislike Trump or do you want someone else to win to do better things? People really need to think about their reasons.
The presidency is largely a figurehead position. There's simply no way that one single person can actually govern over 300 million others, but they can "speak" for them to those outside the country. I don't think today's presidents are capable of accomplishing all that much, really, but they do represent an attitude that America reflects to the rest of the world.
Whether it is Trump, Biden, or Daffy Duck as president, the inner workings of the country will hardly budge. Trump being elected I think best exemplifies this: his credentials were what exactly? Being a reality TV star? I'd much rather have Arnold Schwarzenegger be president but of course he wasn't born in the U.S., so oh well.
Basically I'd rather have anybody be president than Trump, because yes, I personally find him very distasteful and its pretty embarrassing that he's actually our president. I would have felt the same way about President Hillary as well, to be honest. Which is part of the reason why I left the U.S. after the last election.
Ultimately, however, the way things are set up, the health of the country is going to be what its going to be regardless of who is president. Too much money depends on everything remaining status quo. Every election, people say "Oh, it will be the end of the world if so-and-so gets elected." Then so-and-so does get elected, and nothing ever changes.
You have said that the presidency is largely a figurehead position. This is exactly what Trump is showing us. His distastefulness has to do with his honesty in showing that the presidency is largely a figurehead position. Any other popular candidate or potential candidate would do just the opposite. He/she would attempt to solidify the idea in the minds of the people that his/her importance was something to be worshiped, like you honor a king, or Queen Elizabeth, for example.
The presidency is part of a corporation. This corporation is set up and accepted by many to run certain aspects of life operations among people. To do this, the corporation hides that fact (as much as possible) that jury nullification can get rid of any presidential decisions on a local basis. And if the same decisions are implemented by enough juries around the country, the laws will be changed. IN FACT, jury nullification is so important, and is such a danger to the control government wants to exert over the people, that it is barely heard of among the people. Government hides it as much as possible, just to maintain their control over the people.
More important than this is the fact that government essentially dupes people into thinking that it talks to them. With regard to the people of the nation, government literally uses entrapment tactics to get people to believe that they (the people) are the ones who are ordered to follow government regulations, and even government laws. But government can't even talk to the people except that the people ask them to. Slowly read
this, and then look up the documents in the government that show it to be accurate -
https://redress4dummies.files.wordpress.com/2018/03/office-of-person1.pdf.
We are being duped to have much of a focus on the presidency at all. It doesn't affect us except that we ask it to.