Personally, I’ve been in multiple partner relationships. Are they perfect? No, absolutely not. But neither were some of the monogamous relationships I’ve been in.
I think the comic is a little off too, and I agree with you about how it portrays cheating, but it doesn’t make sense to shit on all forms of relationship that you don’t agree with.
It sucks because Sh.itjustworks is generally a pretty good place, people trying some good things like the Agora. Then I take a look a few minutes later and it’s like the Donald Glover pizza meme all over again.