A pyrrhic victory is a victory that is not worth achieving because of the excessive toll it takes on the victor, and in this context the victory is described as being costly and meaningless.
Context: "I don't know why they still bother, the costly and meaningless victory which is their only hope, will leave them kings of a mountain of fire and broken glass." Claim: "I don't know why they still bother, the pyrrhic victory which is their only hope, will leave them kings of a mountain of fire and broken glass."
Considering the context, is the claim true, false, or unknown?