The alternative is not breeding living beings just to imprison and exploit them. Going extinct isn’t “bad”, especially when the alternative is what we currently inflict on them. That said, you can always support sanctuaries. You know those places taking in animals that specifically don’t have a literal “meat-program”?

“Our meat program” Literal support for the corpseflesh industry isn’t “vegan”. If you want to keep animals away from slaughter, support actual sanctuaries that aren’t threatening to kill anyone, or take a bolt cutter and break the cages and fences yourself.