"Going dark" is a good thing... it limits the state's ability to abuse its enormous power (which is already routinely abused, as any student of FBI history or current events should know).
However, "going dark" is not what's happening. Only recently had government has this much power to examine, catalog, and track the masses. Instead of debating the ethics of encryption (and trying to outlaw math), we should be debating how best to curtail and audit government powers to prevent their abuse.
The problem was the fact that the Internet, in its romantic period, "went light" first. "Going dark" is just a return to the balance once knowledge critical mass was reached about the scale of the "went light" event.
However, "going dark" is not what's happening. Only recently had government has this much power to examine, catalog, and track the masses. Instead of debating the ethics of encryption (and trying to outlaw math), we should be debating how best to curtail and audit government powers to prevent their abuse.