I really wish they would quit torturing animals for this kind of garbage. If people are so desperate to live on, why not proceed directly to human experiments?
To rely on consent to perform animal experiments is like relying on my sandwich to consent to me eating it. It's just not a thing sandwiches are capable of doing.
Unlike the sandwich you're eating, animals are capable of suffering, which is why experimenting with them raises ethical issues to start with.
Some people are incapable of comprehending consent, and are incapable of comprehending scientific experiments. Those people can't be subjects of experiments, precisely for that reason. You seem to be arguing for the opposite.