Frankly, parents ought to have the right to determine what their children learn unless there is a major overriding reason for the state to interfere. Otherwise we get this creepy Orwellian vibe of the state 'owning' children. Frankly, evolution isn't anywhere near important enough to intervene. If the bulk of parents don't want their children learning it the state should respect their wishes.
While I generally agree with the first part, I don't think I can agree on the second. Sure, for sh**tty authoritarian hell holes like Turkey in 2017 it probably don't matter too much if they learn proper science or not, but what about Alabama in the 70s?....probably now too sadly.
See, this is where progressives lose me. Proponents of this argument usually assume that it is self-evident that evolution is so important and rarely explain why parental opposition to it must be ignored.
A lot of modern medicine, and understanding of climate change is dependent upon evolution. Also it's incredibly unfair to discriminate against children for having ignorant parents.