Causation is a tricky concept. If you find the idea of a universe without cause absurd, and you postulate a Cause (supernatural, conscious, intelligent, or none of the above) then you have to ask what caused the Cause. And if you try to wriggle out of that by saying that Cause was uncaused and didn’t need to have a cause, then you’ve just pulled the same trick you weren’t happy about pulling with the universe itself. And to top it all, you’ve postulated the existence of some entity for which you have NO evidence except a bit of reasoning that you’ve just used to undermine itself.
In fact it’s really REAALLLLLY easy to think of something huge and complex that had no cause. Theists do it all the time. Atheists prefer to stick with what we can see. Sure, it’s really weird that the universe is uncaused, but at least it is unequivocally, undeniably here.
One other point. Every causative relation that we have ever observed, of the form ‘X causes Y’, has involved X and Y being events within the universe, taking place at times Xt and Yt, where Xt<Yt. Current cosmology suggests that time is itself a property of the universe, inseparable from it (it’s one of its four [or eleven?] dimensions). If the collection of concepts that need causative explaining include time itself, how exactly would that work? You could go nuts with this. What caused ‘causation’?
You’d better take this up with the mods toot sweet. Having two accounts is strictly verboten and grounds for banning, but if you make it clear it’s an honest mistake they’ll be helpful in getting your old account back (or moving you to the new one, or something, I dunno I’m not One Of Them).