Robots aren't the problem. Robots are the latest extension of humanity's will via technology. The fact that in some cases they're somewhat anthropomorphic (or animalpomorphic) is irrelevant. We don't have now nor will we have a human vs robot problem; we have a human nature problem.
Excepting disease and natural catastrophes and of course human ignorance- which taken together are historically the worst inflictors of mass human suffering- the problems we've had throughout history can be laid at the feet of human nature and our own behavior to one another.
We are creatures, like all other creatures, which evolved brains to perform some very basic social and survival functions. Sure, it's not ALL we are, but this list basically accounts for most of the "bad parts" of human history and when I say history I mean to include future history.
At the most basic brains function to ensure the individual does well at the expense of other individuals, then secondly that the individual's family does well at the expense of other families and thirdly that the individual's group does well at the expense of other groups and finally that the individual does well relative to members of his own group.
The consequences for not winning in any of the above circumstance are pain suffering and, in a worst case scenario, genetic lineage death- you have no copulatory opportunities and / or your offspring are all killed. (cure basement-dwelling jokes)
All of us who have been left standing at the end of this evolutionary process, we all are putative winners in a million year old repeated game. There are few, or more likely zero, representatives of the tribe who didn't want to play, because to not play is to lose and to lose is to be extinguished for all time.
What this means is, we are just not very nice to each other and that niceness falls away with exponential rapidity as we travel away from any conceptual "us" ; Supporting and caring about each other is just not the first priority in our lives and more bluntly any trace of the egalitarian impulse is totally absent from a large part of the population. OTOH we're , en masse, genocidal at the drop of a hat. This is just the tale both history and our own personal experience tells.
Sure, some billionaires give their money away after there's no where else for them to go in terms of the "I'm important, and better than you, genuflect (or at least do a double take) when I light up a room" type esteem they crave from other members of the tribe. Many more people under that level of wealth and comfort just continue to try to amass more and more for themselves and then take huge pains to passed it on to their kin.
The problem is, we are no longer suited, we are no longer a fit, to the environment we find ourselves in, the environment we are creating.
We have two choices. We can try to limit, stop, contain, corral, monitor and otherwise control our fellow human beings so they can't pick up the fruits of this technology and kill a lot or even the rest of us one fine day. The problem here is as technology advances, the control we need to exert will become near absolute. In fact, we are seeing this dynamic at play already with the NSA spying scandal. It's not an aberration and it's not going to go away, it's only going to get worse.
The other choice is to face up to what we are as a species (I'm sure all my fellow /. ers are noble exceptions to these evolutionary pressures) and change what we are using our technology, at least somewhat, so that, say, flying plane loads of people into skyscrapers doesn't seem like the thing to do to anyone and nor does it seem like a good idea to treat each other as ruinously as we can get away with in order to advantage ourselves.
This would be using technology to better that part of the world we call ourselves and recreating ourselves in our own better image. In fact, some argue, that's the real utility of maintaining that better image - which we rarely live up- at all. We are not this, very much, but this is what we can dream we could be.
Is this any different than dreaming of a tricorder or a communicator and then making them happen? In fact , if you watch enough (too much!!) sci-fi, you'll eventually encounter an interesting meme. Good humanoids from the future are often less mesomorphic, have bigger craniums, and are more gentle and wise and caring and pursue, often in hidden and inscrutable ways, broadly egalitarian and humane goals.
And they're a lot less sexy, which is significant I argue because it's tacitly implied that the way forward in evolution is something other than the one favored by evolution and which directly and singly gives rise to the above enumerated dynamics, sexual selection.
One choice we don't have is the Luddite choice. Technology is going to move forward. That limits our options severely and strongly defines the choices we will be faced with going forward. I will bet on technology and not against it. We've brought engineering to every aspect of our environment except as yet the most important one- ourselves, our brains and the impulses, values and proclivities they generate.