No one is saying that.

Levers. No one said the pulley (or CAD) rendered the architect defunct, and no one is saying computers should do the same for mathematicians. We're just trying to understand this resistance to using tools to help do heavy lifting, the “human-centric bigotry” as the article puts it. Reading some of the responses here, it's probably being overstated, but even so.

And ignore you and go play somewhere else? A good number of the most influential computer scientists have actually been psychologists, not mathematicians, so the older brother needs to get the fuck over himself if that's his attitude!