My point is rather simple. Teach the empirical proof of the existence of evolution. From genetics, Knorr soup labels, or what have you. Then offer your hypotheses. That would be how science is supposed to be taught. The longer you pretend that speculation is evidence the less science will be respected in the American classroom.
As to why genetics is an additional reason for skepticism vis a vis evolution, see my 96.
Extremely so, and with very good reason.