[lmm]

Pragmatically speaking, technology causes new problems. You might say it's already a problem that there exist crazy people who want to destroy the world, but really this is not a substantial issue nor one that is tractable to solve. So if there were a piece of new technology that meant that everyone had the power to destroy the world, that would for practical purposes be a new problem.

There is an established, reasonable position (e.g. Watchmen) that it is bad to increase the power of individuals, because when large power can only be wielded by large societies this limits the damage it can do, compared to the same power in the hands of a single individual.