Wow. That's a bleak and insulting picture of both the future and of slashdot. And you're clearly suffering from Dunning-Kruger -- or more accurately, the rest of us find you insufferable due to Dunning-Kruger.
I admit, I awk and perl pushed everything about linear algebra and a whole boatload of other things I learned in school out of my brain. But that doesn't make me stupid -- I simply know practical things for my particular and current situation. I have no doubt I could pick up linear algebra quickly should I ever find a use for it. But advanced mathematics is a very specific skill that's valuable only in a very specific few situations -- just like awk and perl. And just as equation solvers like matlab devalue some of the skills of people who can do certain algebraic manipulations in their head quickly, new languages, software and IT design patterns will (hopefully) supersede today's internet duct tape. But just as you learn to use matlab to work more efficiently, I learn how to use Docker Swarm and Consul and RUM and CNDs to work more efficiently. Sure, some of today's current IT people will be freed up for more productive work because I can do more with less. But those of us left will be paid more, not less. And the results of our less but smarter work will make the world exponentially better (though we'll almost certainly not be paid exponentially more).