I agree that science is based on evidence, but I can't take it seriously if it's based on theory. Science can come up with a theory, sure, it has to start somewhere. But for it to be credible, it needs to be proved, otherwise it will continue a theory, and not a fact. My biggest issue with evolutionary science is that is has drawn too many conclusions from very few tangible facts.
In my opinion believing in evolution requires as much faith as believing in God. I'm still waiting for someone to produce a living cell in a lab, from the non living elements that scientists believe existed when life began. If they weren't able to do even that much, how am I supposed to take everything else seriously?
They want to come up with theories? No problem. But I won't accept them as facts based on consent. I'll accept them as a fact when I see them done, multiple times, with the same results. That's science to me.
Science is in large part, sets of theories. Theories in the scientific sense of explanation and not in the colloquial sense of mere speculation. There is no proof in science. Science tests theories. Science uses theories to hypothesize and predict. Science does not prove theories. However, regarding the theory of evolution, it is the most well-supported theory in science. The theory of gravity that practically everyone accepts does not have the evidential basis and understanding that exists with the theory of evolution.
To the best of my knowledge, all the conclusions regarding evolution have been drawn based on the evidence. This is not the same as saying that all conclusions are correct. But even if some are incorrect, that is not, by itself, sufficient grounds to discard the theory. There have been incorrect conclusions based on the evidence of various research in the past, that did not cause relevant theory to be discarded.
Here is a contrived example of what I mean. People are beings that communicate. We know some things about this. We continue to learn more and recognize how little we actually know. If I were an expert in linguistics and claimed that most major European languages do not have some origin in Latin, but are derived from Inuit languages I would be wrong, but this would not drive a need to discard theories of language.
Regarding abiogenesis, the current position in science is that we do not know how life originated. At this point, abiogenesis is a set of hypotheses that are in need of data to test them with. Data existed in their formulation and scientists are currently gathering data. At some point they may have enough to discard some or all of these hypotheses, but there is no reason to consider that life could not originate from the action of natural processes in the environment.
What you demand regarding evolution has essentially been carried out over the last 200 years and continues to this day with an expectation that testing will continue on into the future. This rigor will be applied to studies in abiogenesis as well. This does not mean that we will find the answer or an answer, but a growing number of scientists will be looking and testing. Not finding anything will not lead to some default answer being correct either.