with that said...
The reason to not teach "evolution" as it is currently taught, is that it supports an elite intellectualism (predominately an empiricism over all coming rationalisms) much as the US political system is an elite system of who you know, not what you know. It should be that knowledge of nature counts for information on the pattern of evolutionary change but it is rather who one considers authority that matters more.
Evolution has this burden because of the connections of Malthus' analysis of comparing two measurements (food supply and human growth rate) to Darwins' specification of the independence of natural and artifical selection. As such evolution as it massively suggested upholds a particular economic reality that might not be the phase that translation in space and form making is materially except in a token sense.