See, all stuff like that does is make me wonder what "within reason" is. For instance, could I make love to a dead pig? I'm not ****ing it, damn it.
I can only assume that Posner’s comment was intended to express a rationale for this law that the Illinois legislature had passed as a matter of public policy and that does not violate anyone’s rights.
I’m unsure what you mean by “making love to a dead pig,” but in fact many jurisdictions have laws that dictate what one must do with the body of a dead animal that one owned. If a jurisdiction passed a law prohibiting whatever you’re proposing to do with the dead body of a pig, it’s quite likely that such a law would be upheld.
It’s actually no different than anti-cruelty laws, which regulate what a person can or cannot do to an animal that is covered by the law, even though the law only recognizes animals as a person's property. You can take a blow torch to your perfectly good TV and destroy it, but (in most jurisdictions) you can’t do that to your dog.