I think this is a weak argument, because you could just as well use it to argue for conducting these experiments on humans:
Humans suffer horrible lives naturally too, and on a much more massive scale. If you're really against human suffering and dying then a far bigger problem is the existence of humans with peak populations, unreliable food supplies, murderers, fights and disease. Stopping research on humans is like trying to stop global warming by driving slower. Feels like you're making a difference but you're not.
Humans suffer horrible lives naturally too, and on a much more massive scale. If you're really against human suffering and dying then a far bigger problem is the existence of humans with peak populations, unreliable food supplies, murderers, fights and disease. Stopping research on humans is like trying to stop global warming by driving slower. Feels like you're making a difference but you're not.