Government can never abolish people who believe in crazy things. Getting rid of religion can only be done when people themselves start seeing the evidence that religion is a man made construct. People have to individually stop believing in fantasies and start living their life in realities.
Don't have and idea how long that is going to take, but it will get here sooner or later. Can't imagine a million years from now if the human race is still here, that people will still believe that Jesus will soon come to judge everyone.