Hi Mark. Thank you for your thoughtful critique. It's true that the Kalam argument attempts to bridge a gap between our understanding of causality within the universe and something potentially outside it. That's a valid point to consider. I'm not sure that the Kalm argument collapses because of your point, though. Your critique invites humility and reflection, but to say it essentially cancels out the point is an overreach IMHO. I can write more later. It's past bedtime for me, though. :-) All the best.