Answer:
Donald Trump and Joe Biden both have valid reasons to be President. This election is like the Gore Vs Bush election.
Donald Trump wants guns for safety, the right if you want vaccines or not, and wants to expand non-renewable energy.
Joe Biden wants to take gun rights so no more school shootings/ killings happen, he also wants you to get vaccines so diseases don't spread as drastically, and he would immediately re-join the Paris climate agreement if elected, he wants the US to reach net-zero emissions by 2050.
So to sum it up both sides are valid enough for them to become President of the United States.