Why don’t they instead use their new tools to create giant chickens? They could solve world hunger!................
Giant chickens would be more difficult and expensive to care for. Chickens are just about the right size already.
I can imagine one use for re-creating a critter and developing the technology to do so: if major pollinator populations were devastated, we could replace them.
But most solutions like that will probably come with all sorts of miserable unintended consequences; and some kind of mechanical solution would always be safer.