Impeaching a president is a really big deal that has huge consequences for the nation. So the framers wanted to make sure that impeaching the president could only be done when there was an overwhelmingly convincing reason to do so. Your best answer is the last one: the framers wanted to ensure that presidents were not removed from office unfairly.
to keep enemys and predators
By believing in controlling ideas as well as actions would be
the reaction to the idea that "all men are created equal" by the followers
of the three philosophical traditions in China. This would give "all men
are created equal" a new power. With this, a new power would be given to
the “all men are created equal” statement.
The Declaration of Independence
of the United States of America in 1776 was the event where the
immortal statement “all men are created equal” was made. This means that “all
the people have a right to live, to be happy and to be free and all the people
on the Earth are equal from birth” if understood in a much broader sense.