[Publius6961]

Even if the existence of a designer is a reasonable inference to draw from the complexity of, say, a bacterial flagellum, one would still need to explain how the flagellum moved from design to actuality.

This statement summarizes the silliness of the debate.
The two positions are not mutually exclusive, unless the goal is to bludgeon the other into adopting "your" position, when neither can be "scientifically" proven. Inferred perhaps, but not yet proven and not ever likely to be conclusively proven.

[From many - one.]

The battle is over keeping science classrooms scientific.