Exactly! Why are we discriminating against dogs and other animals? In fact, why can't plants vote? Don't they have a stake on what happens to them when the evil capitalists want to cut them down to make way for suburban sprawl?
I don't know, but I suspect that a false analogy does not lead to rational thinking.
I fail to see the relevancy of comparing polygamy, a common practice among godly men such as the patriarchs, to bestiality, an abomination practiced by God's enemies and perverts.