Earlier quoted context omitted.
Can you explain how the existence of a first cause can be contingent?
As I already said, the notion of a first cause is absurd, it's an idea that has no basis in reality or evidence to support that such a thing is. Just because you can think a thought doesn't mean reality must reflect it. If you insist the universe had to come from something, then you can't solve the problem by inventing a god that doesn't. If you can accept that a god is eternal, then you must accept that the universe…
You say that the universe is and that it came from nothing. That means you believe the existence of the universe is not contingent, which implies its existence is necessary. It's also remarkable that you posit that a first cause is an absurdity, yet then postulate that the universe has the properties of a first cause.
I find a logical contradiction in that the universe is known to have had a beginning. By any definition of contingent that I know of, something with a beginning has contingent existence.
Or perhaps you think it more scientific to suppose that things can happen without a cause (e.g. universes). Good luck with that theory. You had better hope that a universe doesn't happen without a cause under your bed. Now you live in a universe where miracles can happen without any reason whatsoever. They just are.
It actually sounds like in your world anything can happen any time for no reason. This begins to look very different from the universe I appear to live in.