Well, there's a difference between pragmatically functioning in the real world by utilizing tools that you don't fully understand and asserting truths about the universe as fact by appealing to a branch of science that you know very little about.
In this conversation I repeated conclusions of science that seem to me to be well and consistently documented in the science press, and whose basis and import I understand in outline, and I also offered hypotheses uncongenial to the Cosmo Argument which are not so far rebutted.
Whereas in order to correct, the Cosmo Argument has to be solid all the way through. It must be able to show that all things 'that have a beginning' are caused. I've cited examples from science ─ uncontroversial, so far as I'm aware ─ of phenomena that have no cause as that term is understood in classical physics, and that instead are the result of quantum randomness.
And proponents of the CA must be able to show that time is not a property or incident of mass-energy (or some other thing), ie that such an hypothesis is wrong.
And so on through a great list of possibilities.
So while I'll cheerfully consider any rebuke to my post offered by someone with greater understanding than I have, so far so good.
The Cosmo Argument is a dud, albeit a thought-provoking one. And even if it weren't, it wouldn't be an argument for God, as others have already pointed out. How could it be? God doesn't even have a useful definition in the real world, the realm of science.