I disagree. By "origin theory" I will assume you are referring to evolution since that is the topic of the rest of your post, rather than abiogenesis of which "origin theory" would be a better (but by no means perfect) description.
There is evidence for evolution. Lots of it. You cannot dispute that organisms have changed over time - that is what evolution is, and it is an observed, undisputable phenomenon. The theory of evolution is what is disputed, and even that is only disputed by theists who believe it contradicts their beliefs. And again, there is plenty of evidence for the currently accepted theory of evolution - take a look
here,
here and
here for examples of such evidence.
Your basic argument here is that evolution cannot be replicated or falsified. Firstly, while we cannot replicate the evolutionary processes that led to the evolution of, say, humans from their ancestors, science does not require that we do this. Science requires that there are
observations that can be replicated. Such observations are abundant in the
human fossil record.
Furthermore, evolution is falsifiable. Yet an observation of a fossil, say, that contradicted the theory of evolution would mean that we would have to throw out the theory. In the immortal words of J.B.S. Haldane, finding a fossil rabbit in Precambrian rocks would serve to falsify evolution.
Evolution is supported by the fossil record, the geologic record and numerous other lines of evidence - some of which are pursued in the links I gave above. All of this is concrete evidence, not resting on "theories and hypotheses" as you contend. The fact that evolution itself cannot be replicated is no grounds for claiming that there is no evidence for it.
A law describes mathematical relationships between observed phenomena (for example, F=MA is a law.) L.S. Berg notwithstanding, there is little indication that the theory of evolution will ever be formed into a law, because the phenomena described in the theory of evolution cannot be mathematically linked. This does not, however, mean it is less useful, less valid or less supported than a law. All it means is that it cannot be reduced to a set of mathematical constants and variables: this has not harmed the viability of evolution in the past and I doubt it will in the future.