Before I could even pass through the threshold of this discussion, I stumbled on the word ‘irreducibly’ at the doorway.
Irreducibly means something that cannot be made smaller, simpler or further diminished. “This is as good as it gets!”
More importantly, an irreducible structure serves no purpose if any component is removed (or not yet installed)... Random genetic mutation can’t “forsee” the needed components and assemble them later. Evolution without the guiding hand of a Creator is bunkum.