All i can picture is an army of internet-dancing-hamster men slowly marching across the plains in formation blaring that hamster dancing song on mega-speakers destroying everything in their path.

While i agree with you that one might want to consider the community's force against you when applying extreme relativistic "gray" moral principles, the fact of the matter is, all things ethical are indeed gray. One thing's good can be another thing's bad (just use your imagination a bit). As soon as you say there are absolute morals of any sort, you are implying there is some absolute judgement, which of course there is not. Your perceived sanity is also relative. And, other animals breed/use animals for food all the time (in horrific ways humans will hopefully never realize themselves).

I totally agree. Also, if I felt someone who is creating suffering sentient mutants needed to be killed, I *could* do that.

But seriously, all morals are obviously relative. I mean what if it turns out humans are to be a very bad addition to the universe. Like all other intelligent aliens out there are magnitudes more peaceful and we are like the equivalent of Species 8472. So, any actions leading to the destruction of the human race would be considered a "good" thing.