Nevermind the increases in safety. Nevermind the new jobs that this will enable. Nevermind the greater standard of living this will bring to all people. We've got to be concerned about potentially lost jobs above all else.
Nevermind the strawman. Nevermind engaging the non-debate, when the real debate is difficult, even for serious minds. Nevermind that throughout the animal kingdom, the unemployed are soon tagged on the ankle or wrist to become unwilling organ donors. It's not like employment has any bearing on survival or mating opportunities. I suspect one testicle well employed outperforms two testicles unemployed. But don't scream too loud when your first nut is clipped.
The point here is not that the swelling ranks of the unemployed and the under-employed moan loudly, it's that they moan badly, as ignorant gits tend to do. Still, even a bad moan is appropriate when your left one is severed by a rusty plutocracy (stored in damp basement wrapped in seven layers of oil cloth for about three hundred years after everyone in arrived in America fleeing this very same thing). Johnny Appleseed didn't fall far from the tree.
Greenspan held this quaint notion that the superpower quants would self-regulate due to interlocking competition of interests. What actually happened is that the superpower quants looked around the poker table and spotted a trillion dollars in Uncle Sam's pocket while he as stupidly wearing an "aw shucks, too big to fail" quasi-libertarian grin on his face. If there's any business that Government should not be in, first and foremost, that business is libertarianism. Of course, once government takes the first fatal step toward libertarianism, they begin to resemble exactly the straw man that libertarians wish to portray it as being. Call it the straw man death trap, and a fine business this is if your agenda is to lead government into the noose swaying above the trap door.
If the hollowing out of the middle class isn't giving plutocrats everywhere a raging boner, I don't know what would. This observation alone ought to give people pause for thought about committing Greenspan's error with regard to Schumpeter's gale of naively presuming that if it ends well once (or any finite number of times), it ends well in all cases.
After the fiscal crisis, did any of the elites go "my bad" and volunteer to repay the public rescue purse for emergency rescue rendered? Have they clucked about government intervention in their affairs so loudly as to set up a private rescue fund with a twelve digit cushion to tide them over their next salivary mishap? Oh, nooooo. That would never happen.
I can't see far into the future on this one. The one thing I'm fairly certain about is that filthy rich old bastards will require small standing armies of man and woman servants to cater to their every whim. So there will be jobs after all, no matter how this tempest in a teacup finally shakes out.