Cattle ranchers and government agencies do kill Yellowstone bison ostensibly due to brucellosis risk, and it's true that wild bison have never transmitted the disease to cattle — only elk have. But the post oversimplifies a genuine policy dispute: ranchers argue cattle face infection risk from wild animals in the region (primarily elk), while bison advocates say this justifies neither the slaughter nor the prioritization of cattle over native wildlife. The post's use of 'lying' and 'murder' is emotionally charged but reflects real disagreement about whose interests should prevail.