To say that the probability of the godless origin of life is 100 percent (because we are alive) is not scientific. This is the so-called "conditional" probability. Unconditional probability is negligible.
Nothing in science is 100%, questfortruth.
Clearly you don't understand maths, because science is never "unconditional probability".
Science required conditions and the number one condition is evidence. And for anything to be "probable", it required LOT of evidences. The more you have, the more probable.
The less evidences there are, the less probable it is.
In science, if you are going to work in the lab environment, then it required testings, and REPEATED testings or experimentation.
Doing only one or two experiment is not enough. It required more data, which more evidences, without the numbers, scientist cannot statistical analyse the data, and they would not be able to make more accurate predictions.
Abiogenesis, or the scientific research on the origin of life, is still new, so it require more experiments. It is still hypothetical. What is hypothetical, is that life have thrived in this planet. What is theoretical, is life on other planets. We have no data, here to say one way or another about the rest of this galaxy, let alone other galaxies or the universe.
But in any case, here, on Earth, the evidences for life, and evolution, the probability is very high, because the evidences is there.
What isn't there, is God or gods. There are no evidences for their existence. They only exist in religions and in religious belief, which is not testable.
You cannot test a god...who is supposedly "invisible", and beyond every conceivable ways, where he can't be measured, quantified or detected, which would make you God no better than a pink unicorn or leprechaun or pixie.
Science can only deal with the physical, not imaginary being. In order to be test whatever scientists are examining, the evidences have to be detectable, measurable and quantifiable, which God failed in every categories.