For pigs, this is entirely plausible. While i'm also very opposed to our current factory farming practices, since i'm fairly nihilistic about ending meat consumption for high functioning mammals in my lifetime, we could absolutely and trivially easily make their lives pleasant before slaughtering them for their delicious bacon. Yes, it would cause bacon to be more expensive, but it's definitely doable. This is simply impossible for orcas under the current paradigm.
Even as someone who supports animal rights and welfare, i could see myself being okay with orcas in captivity, if we're talking about oceanic reservations, say, the size of Connecticut, but at that size, it'd be impossible for us to make them do tricks and crap that people go to sea world for.