[Dimensio]

Is this author trying to say that we would not have medical nor agricultural science today if not for the theory of evolution??

Consider the resulting disasterous effect to the Soviet agricultural industry when Stalin outlawed the teaching of Darwinian evolution.

[visually_augmented]

Dimensio: "Consider the resulting disasterous effect to the Soviet agricultural industry when Stalin outlawed the teaching of Darwinian evolution."

This could never be a proper proof case.

You could just as easily postulate that the lack of religous teaching (caused also by the Stalinist regime) was the cause of a poor agricultural industry.