John Hadley

: J. Baird Callicott's claim to have unified environmentalism and animal liberation should be rejected by holists and liberationists. By making relations of intimacy necessary for moral considerability, Callicott excludes from the moral community nonhuman animals unable to engage in intimate relations due to the circumstances of their confinement. By failing to afford moral protection to animals in factory farms and research laboratories, Callicott's biosocial moral theory falls short of meeting a basic moral demand of liberationists. Moreover, were Callicott to include factory farm and research animals inside the moral community by affording them universal or non-communitarian rights, his theory would fall foul of environmentalists who seek to promote ecosystem stability and integrity via therapeutic hunting. If factory farm and research animals can have rights irrespective of their particular circumstances, then so can free- roaming animals from overabundant and exotic species

In this paper I bring together self-defense theory and animal rights theory. The extension of self-defense theory to animals poses a serious problem for proponents of animal rights. If, in line with orthodox self-defense theory, a person is a legitimate target for third-party self-defensive violence if they are responsible for a morally unjustified harm without an acceptable excuse; and if, in line with animal rights theory, people that consume animal products are responsible for unjustified harm to animals, then many millions, if not billions, of otherwise law abiding and decent people will be legitimate targets for third-party self-defense violence on behalf of animals. I call this problem: the multiple inappropriate targets problem for animal rights.