You admit that computer and software are eating the world, but come to the conclusion that it's useless to teach people to speak to them at a basic level.

I'm not sure I follow your argument.

We don't teach literacy because we expect people to be professional writers, but rather, that because the written word is a basic means of communicating with each other and the world around them -- we're having this very discussion through the power of literacy, even.

In what way do you think people advocating teaching programming mean in any other sense?

When I advocate teaching programming to people, I don't envision a world full of software developers, I imagine a world full of slightly more informed software users. People who can interact with the Googles of the world by writing a sentence (or even a Boolean expression!) using correct logic or who can write a small Javascript snippet to automate a simple task like highlighting certain things on a webpage or who can write a simple Python script to get a rough approximation about how some numbers work.

Further, having even a tiny basis in computers - like the level of mathematics we teach in high school (on average) - gives me a basis as a professional to explain how things like Facebook work in a way that I can't now. It's much in a similar way to how once people know what a variable and a function is, I can explain more advanced math concepts using those ideas -- in a way that I couldn't if I had to start at the very beginning with "this is a number".

So again, I'm not sure I follow your argument: if software is eating the world, why wouldn't we teach people to speak basic software in addition to basic spoken language?