Well, that’s just the thing— if it’s nonsense to talk about occurrences not occurring, or possibilities not being possible, then it seems the universe must exist out of necessity. To say that it is possible that possibilities wouldn’t exist, is nonsense— therefore it is a contradiction to say that the universe could’ve not been.

Perhaps the universe only exists because it would’ve been a logical contradiction for it not to have.

Or perhaps the universe (not just the observable universe post big-bang, but the potential multiverse structure beneath it which you would also deem part of the “universe,” or “all that exists,”) has always existed, and is persistent unchanging in some sense, and therefore could not have not been either.

I’m just not sure that it made sense when you said that it’s possible that there would’ve been nothing, and that makes it beautiful that there’s something. I would argue that it’s either not possible that there was nothing, I.e. the existence of the universe itself is necessary, I.e. it’s non-existence would be a contradiction, or else other non-necessary entities may exist.