... anything in Darwinism that is untestable, yet speculated on and proclaimed as science.
Got an example that applies to evolution science and not some fantasy about what evolution is?
... Abiogenesis, ...
What about abiogenesis - as practiced by scientists - is not testable? Are not all the experiments they are doing tests of concept? Just askin ...
... Darwinism ...
Really, marc, you've been around here long enough to know that the science is called evolution and that the scientists study and test evolution concepts. At best "Darwinism" was the beginning of the science of evolution, but the science does not depend on Darwin, it depends on facts and evidence of evolution.
You should also know by now that using "Darwinism" just exhibits your ignorance and failure to understand.
Enjoy