Some international relations scholars would posit that interest in zombies is an indirect attempt to get a cognitive grip on what U. S. Secretary of Defense Donald Rumsfeld famously referred to as the "unknown knowns" in international security. Perhaps, however, there also exists a genuine but publicly unacknowledged fear of the dead rising from the grave and feasting upon the entrails of the living.
To posit the existence of a Creator requires only reason. To posit the existence of a good God requires faith.
It is necessary to posit something which is necessary of itself, and has no cause of its necessity outside of itself but is the cause of necessity in other things. And all people call this thing God.