> I don't think Godel's ontological proof of God makes any sense.

On what basis?

> but a good majority of them don't because many believe in Sartre's motto of "existence precedes essence".

"The idea originates from a speech by F. W. J. Schelling delivered in December 1841.[4] Søren Kierkegaard was present at this occasion and the idea can be found in Kierkegaard's works in the 19th century,"

Both Christians, and theists.

Sartre latter believed in Communism and Maoism. A central idea in many religions is that mankind was given free will by the creator. If you like our essence is a freedom.