That is what most religious scientists believe. We don't really know what came before the big bang, so it could be any number of things. If you believe in an all powerful God, then it would make sense to assign him as the cause of the big bang.

As an atheist I would rather say I don't know rather than assigning a cause, but to each their own.

Certainly. It's possible. Is it probable? Impossible to tell. At best we can use Occam's Razor to guide us: it is simpler to have an infinitely small point of energy and matter explode outward due to irregularities and imbalances, than to have that, in addition to a God. As such, we can reduce the probability that God created the Big Bang to less than the Big Bang as a natural occurrence.

The same applies to evolution.

Because something could have happened doesn't mean it did happen. This is a very important distinction.

I mean, that is possible according to what we know.

Relgion can always change their rules and say "oh wait, I mean god came before that, oh wait, I mean god came before that."

It's easy. That's what the religious have been doing for thousands of years.

Is it likely? No. Replacing god with the natural state of the universe is basically replacing something kind of mysterious but fairly simple, with something infinitely mysterious, and infinitely complex.

Basically blaming god is kind of a cop-out. "I don't feel like thinking... uh god did it, yeah, that's it."

If God exists, then it is possible. If God does not exist, then it is not possible.

This is just a matter of possibility, not probability, which would be a whole different matter.