This is an alluring retort, but I have to agree with
kimdouglasmason that it has no actual weight.
kimdouglasmason explains and gives examples of why literacy has had such a huge impact on the world. You give no examples of how code literacy will have similar impacts. You just make an analogy and say it will affect the world "in ways we can't imagine".
Your argument could just as easily apply to electrical engineering. The whole world runs on electricity, how is it that no one knows Maxwell's equations! Everyone should obtain basic proficiency in applying electromagnetic theory: it will help the world in ways we can't imagine now.