". . . they are proposing that which cannot be disproved, namely; that intelligent design alone explains complexity . . . "
I have seen displays which show the radical difference between organic and inorganic chemistry. The structure of the molecules of inorganic chemistry is a pattern repeated over and over again. This holds for molecules consisting of elements throughout the periodic table. However, with inorganic chemistry the molecules do not form any consistant repeated pattern. Its sort of like the difference between rational and irrational numbers.
The point is that life on the smallest scale looks very different from mere matter--and yet the overwhelming balance of stuff in the universe is matter/energy/space. What's the evidence of God when adam and eve are in the garden of eden. The answer is the Garden. I think a similiar arguement is being made for all life.