Almost certainly, yes. AI has its dangers, but it's also potentially the source of a huge amount of innovation and the solution to a broad class of problems.
> I don't think the capitalistic structure + unbridled automation is a stable combination.
There are other structures that could potentially work in a post-scarcity world, but let's create a post-scarcity world first, and file the rest under "problems we'd love to have".
http://www.ubergizmo.com/2014/09/samsung-sgr-a1-robot-sentry... "$200,000, all weather, 5.56 mm robotic machine gun also sports an optional grenade launcher... identify and shoot a target automatically from over two miles away... robot will not distinguish between friend or foe..."
AI is of course a serious concern. But this isn't AI, it's a robot.
> Those robots lucky enough to have limbs that can operate a doorknob, or to have the door left open for them, would have to contend with deceptively tricky rubber thresholds before they could get into the hallway.
It's worth noting that the killing robots in use now are the drones in service of the United States government.
Sure, sooner or later, individuals are going to build robots that run amuck and kill some people - but to really massacre at a large scale takes a state sponsor.
You know... crazy mad scientist Japanese Anime Mecha or Star Wars Worldeater type stuff.
In general society is moving towards significant increase in monitoring and automation, technology is making it simpler and cheaper to do so, I do not foresee reversal of this trend baring a catastrophe class event. This means that we as a society will have to seriously reexamine privacy as a whole.
Also, (before software and hardware eat the world, literally) I don't think the capitalistic structure + unbridled automation is a stable combination. Because those who own the capital will always prefer an uncomplaining and efficient worker, the robot, to a human being 9 out of 10 times. And those who own their labour are, well, outdated. The pace of automation is beyond unprecedented; it is incomprehensible.