That is a horrible and seriously criminal attitude. You're arguing that if others don't give you something you need, it's fine to just murder them (your words, not mine). Unprovoked violence is never justified; whatever your problems might be, you have to solve them peacefully (unless you get attacked first). This kind of Robin Hood-style violence does not belong in a civilized, developed society.
This (your) response is perfectly expected and accepted in a civilized society. Once the civility is removed from the society (all the resources), you should expect "the law of the jungle" to be the natural state.
Ultimately, we are all animals no less than a wolf or a tuna fish. Our uniqueness allows us to create structures above and beyond what the other animals can. The base of these structures is the ability to more easily fulfill our will to eat and live. Once it becomes as difficult to eat and live within the structure as it is outside of the structure, you will see people either tear down and rebuild the structure or just ignore the structure entirely.
Your ideas of right and wrong, peace and attack, criminality, etc. come from the rules associated with that structure. Without those structures, there is nothing wrong with me killing you, raping your wife, enslaving your children that are useful and killing those that are not.
It is in your (and my) best interest to keep society civilized and fair. Some people seem to think that is not the case and that is why we are having this conversation at all.