But, I will address them.
I actually have no issue with people being in poly relationships. The only issue I have with multiple spouses is that, currently, our laws simply cannot handle them being designed around only one spouse per person (see my reply in thread pertaining to this issue). If we get the laws changed to make it so people can have multiple spouses without putting a huge burden on the state/society, I'm all for it. I think there absolutely should at least be something available for multiple spouses to get some of the very basic recognition as a legal kin, until those changes can be made.
I'm for legalizing relations as close as first cousins in every state. There is no legitimate reason not to. I wouldn't fight against them, but also wouldn't fight for/completely support relationships/marriages between closer tier family members. I have already covered why in other threads.