Again the information systems themselves are the objective evidence for intelligent design- no matter the context- argue that with secular scientists at SETI if you like, they are willing to base conclusions on evidence for unknown beings on alien planets- from their information alone, even if they can't decode it.
And just FYI, ID does not in itself refute common ancestry- not that I am a card carrying 'ID' guy
I am skeptical of Darwinian evolution first and foremost, for the same reason people were skeptical of the classical physics it was born out of:
a handful of simple immutable laws +lots of time and space to bump around in.. is simply insufficient. Much more specified info is required up front
This does not necessarily require God, in fact I increasingly hear it used as a secular argument - along the lines of:
'we have no need for Divine intervention, much of the necessary genetic information was pre-existing, & only needed 'activated' at later stages'- that's fine but Darwinism it ain't.