Clearly my training mindset is completely at odds with the general mindset of those "enlightened" pasifists that post here
I wouldn't dismiss you as a troll, but I will accuse you of selective reading. My reading of the consensus views espoused in this thread are fairly positive in favour of competition if that's what you wish to follow. I don't believe anyone has said competition is worthless, just often not what they're after themselves.
As for your "survival of the fittest" remark, this is normally applied to a species as a whole rather than individuals, so doesn't really apply. Indeed, if you check the mortality rates of any "civilized frontier" in history, you may well be amazed at which groups were the true survivors (hint - women with children score rather highly).