For how could we come up with a sensible solution if we haven't actually experienced the issue?
THIS is how a healthy mind works.
The pro-forkers are all neurotics in my opinion.
There isn't a problem so what da fuck is everyone on about?
Speaking only for myself, I don't really want a fight (though I've almost got myself convinced otherwise.) The response is mostly a mirror of what other higher vertabrates do when they are threatened:

The creature is saying "I've got my kill and/or my group to support...don't expect to roll me over without a fight and do expect some collateral damage even in the best of circumstances."