I have heard science talk about something out of nothing, that nothing is unstable and could be responsible for everything in the universe.
Not "nothing" in the same sense- not
the absence of existence, but the absence of matter, of mass.
That is science envoking a creative force
Only a "creative force" in a very rough sense, and it is nevertheless
not transcendent.
Everything after existence is an effect. For Existence to be an effect it has to have a prior cause.
Right, but to say that existence is an "exception" (to universal causation), is to assume that it could be subject to causation in the first place, that this is not just a
category mistake. But not only is this a rather large assumption, it is prima facie untenable for very similar reasons I've mentioned about God- causation of existence assumes a
prior antecedent state of non-existence for the cause of existence to exist
in.
It seems some creative aspect is needed for existence so God
It does not seem that way to me, since
causing existence is incoherent.
It is possible, especially with considering your arguments against transcendence, that it is necessary for existence to be god.
That's not the conclusion I would draw; I would say that the concept of god becomes superfluous- especially if God is not anything above and beyond the physical universe.