That argument is just God created the world, so he gave it to us that way. Which is just taking credit for man's accomplishments. No, humans created our morals through generations of society. Whether God initially created the universe we inhabit or not is irrelevant to the fact that we created culture and society. So we don't even have to get into the 'who created it all' question as it's a moot point.
Dion, below is an amusing quote from Young Sheldon while the little turd was arguing against the existence of God. I am enjoying reading the discussion from both sides. Peace.
“The burden of proof isn't on me. If I said there was an invisible monkey in the room with us, you shouldn't believe me just because you can't prove me wrong.”