Difficulty in taming creatures is something I would expect, that’s cool. As for the toxic act of mass murdering livestock, I think this should depend on how valuable said livestock would be alive. Imaginably livestock would be somewhat hard to come by, and some like dairy or fabric animals would be more valuable living than dead in the long run.
Probably the Beacon would immunize your livestock against other players but yourself. Or you use gold, buy new livestock, and start over again.