I don't see why it is ridiculous for the same reason that I don't see why the taboo against feeding your pet poodle Fido to your snake is ridiculous.
I am fine with the death of anything. I am not fine with inhumane killing of anything. And I am not fine with animal abuse.
Sure, farm a horse for dog food then. Or farm a dog for snake food. But, it rankles the sensibilities to ask a dog or a horse to serve his human master for the length of his lifetime then feed that same dog/horse off when it dies.
We, snake keepers all feel that sensibility when we get attached to our feeder rats. I didn't make the rules - American culture did.
And, in case you don't know, I was paraphrasing Mahatma Ghandi's quote. The actual quote is:
"The greatness of a nation and its moral progress can be judged by the way its animals are treated. I hold that, the more helpless a creature, the more entitled it is to protection by man from the cruelty of man"
Yeah, it would be awesome if you can discuss these points after you get off your high horse - pun intended. Throwing insults serve nothing but to make you sound idiotic.