so this thread made me think long and hard.
i think meat will eventually be lab-grown and we will switch to eating that. it'll be more expensive but people will still be able to get it.
ironically this could result in the extinction or near extinction of a number of domesticated animal that are raised for meat, primarily pigs. i think individual breeds will disappear but the species will not, because some of them will be kept around as zoo animals.
as for killing off carnivores... nah, we won't do it, at least if the trend of eco-friendly net-zero living continues. that's how they survive and i don't think we'll interfere.
all this did make me think though: a large percentage of beings with nervous systems in the history of the world likely died horrible, painful deaths. many species are almost guaranteed to be ripped to shreds and painfully devoured by carnivores at some point in their short lives.
they just happen to have offspring fast enough to compensate. but all that does is create more sentient beings that die agonizing deaths.
perhaps the definition of a life well lived is simply one where you aren't eaten alive.