We don't or can't know whether deities exist. Compatible with either weak theism or weak atheism.
Since theologians and the faithful have produced conflicting and mutually exclusive revelations, it is unlikely that God exists.
A cluster of arguments commonly attributed to a group of Western 21st century writers, that claim that religion is superstition, scientifically disprovable, and bad for society.
It is impossible to reconcile the existence of evil with an omnipotent, omnibenevolent and omniscient God