Of course, if God had that character, then what you stated would be reasonable.<quoted text>
How does a god - or belief in a god - give a life more purpose than it wouldn't otherwise have?
Are you implying that my purpose is to worship it? That's not my purpose - it's the deity's.
As a Christian, your life is devalued and relatively purposeless. In the eyes of your god, you are nothing but a praising machine.
Your purpose - the reason you believe that you were created - is to die and move on to a life of praising some narcissistic black hole of need. In the meantime, you consider the very flesh that you are encased in an your enemy in which you are trapped while awaiting release. You see the world as decadent, and anticipate leaving it, too.
Because He does not, it is not...