Actually darwinism claims that the only source of change is random mutations over time. Epigenics erases that concept entirely
Your claim to what "Darwinism" claims is completely false.
Sometimes evolution does makes things more complex (bacteria to annelid worm, for example). But sometimes it makes things less complex (free living organisms to degenerate parasites, for thousands of examples). Most of the time it does neither. The only direction evolution always moves is towards
more fit. And since the definition of fitness is dependent on and changes with the environment, it is a constantly moving target.
So tell us, why is it that sharks, for one example, have not gotten "more complex"?
Ever hear the term "fitness for survival"?