That's a false equivalence surely. Animals don't have a stake in the law- and policy-making process, whereas humans do - including all those potentially subject to those actions in the future.
In essence, humans have agreed to do these things to themselves. Animals do not have that opportunity.
Glibly, subgroups of humans called "the government" institutionalize procedures for the treatment of other humans. Without going into which groups of people are represented by these governments, which is a very important discussion in its own right, the species has its own voice. That's not the case with octopuses or lab rats or what have you.
In essence, humans have agreed to do these things to themselves. Animals do not have that opportunity.