Because we need to save our animals.The human animal will likely continue to expand it's population size.
The human animal likes to find answers to problems.
As the human population grows it's people tends to urbanize.
Breeding animals is a human tradition that is tens of thousands of years old and transcends all geographic origins.
The technology will happen. Might I suggest being proactive.
Sell your livestock crop as documented for boutique markets.
Document your animals training history and improve value.