I think there are other posts on LW better suited for that debate,

Both of which are rather short on actual arguments beyond the ones I described here. In fact, my summary there almost looks like a Steelman of their argument.

so I will avoid engaging with you further on this topic.

So you're willing to post a pro-polyamory article with questionable logic on a site supposedly dedicated to raising the sanity waterline, but aren't willing to discuss the topic.