And there YOU GO WITH ASSERTIONS! Neither of these statements is necessarily TRUE!
Is your statement necessarily true? If so, how?
For us to speculate on God having a beginning we must first conclude that God does exist AND find out his Nature AND if that nature has evidence of a beginning.
Believers in God do not speculate and seek proof. They accept what is written in a book without proof and rest on their emotional commitment to that ideal.
None of this is necessarily true.
Life requires a commitment to maintenance. That IS necessarily true.
To postulate that there will be a caregiver and eternal reward beyond death is merely hacking the problem of maintenance and not solving the problem.
(I have to go to work now! Cheers!)