Yes, but your two examples can be verified scientifically.No. But it's important to recognize that it is a long way from becoming a canonical scientific theory like gravity or plate tectonics. It is merely a reasonable hypothesis:
- It is consistent with everything else we know about the natural universe.
- Laboratory experiments with an artificially created primordial environment have resulted in a few of the phenomena which we expect to be in the chain of events that comprise abiogenesis.
- The reason that supernaturalism must be categorized as a fairytale is that it claims to violate the laws of nature that we have spent half a millennium gathering, identifying and quantifying--without a shred of evidence. As noted earlier, this is nothing more than a routine application of the Rule of Laplace.
- So far, abiogenesis is consistent with the laws of nature, and each new step in its understanding reinforces that consistency.
- It has no rational competition.
So, we can accept these as very strong. However, given there is no scientific verification of the emergence of life from chemicals, it should be classified as a weak theory and subject to repeated challenge.
The science community should welcome challenges to abiogenesis because there is absolutely no evidence that it is true.
I personally cannot offer scientific alternatives. I only understand the factual state of affairs.