Personally I would be worried that if the canned lion breeding industry was stopped, it would create a much higher risk of lion as a species becoming extinct.

With so many lion behind wire being preserved for the canned industry it must provide a reserve for the species in the long term.

Truly wild lion are under habitat pressure, competition with cattle or plains game species hunting, and poisoning to remove them etc. They need a lot of space and with the human species ever over-breeding and needing more space ...

Also if canned lion hunters could no longer buy canned lion hunts, even more pressure on the wild lion populations.

Not commenting at all, on the ethics, sporting "value", etc of canned lion hunting.