1) education has been around for millennia, genetic engineering hasn't
2) there is a deep and wide-ranging taboo about modifying the human species, which there isn't about education
3) the gains from genetic engineering are potentially rapid and far in excess of what can be achieved through education
4) there is a potential for states to enter into a human enhancement arms races, and the possible consequences of this - unsafe testing, the complete transformation of the human species, gene-based weapons - are terrible
5) gene editing will amplify inequalities and create eugenic-racist politics, in a way that education doesn't
I think (4) and (5) are the most important reasons why we should be more careful about genetic engineering than education. Competition in education is harmless compared to a race to create the best superhumans.
Let me ask you this. Universities and private schooling give a constant pressure for families to provide the best possible education for their kids, leading to constant competition for the best education since that gives a huge advantage in the job market over everyone else.
Why haven't we banned universities and private schooling then, since it gives just as much advantage as any hypothetical near term genetic engineering would?