Polyamory does work.
It might not work for you.
It might work for a while and then stop working.
It might work but still have challenges.
It might work for you but not work for your friends.
Overgeneralizing is called a cognitive distortion.
You take one life experience and you make it a universal truth.
Life is way more subtle than that!
Marriage does work.
The fact that so many couples divorce after a few years doesn't mean it doesn't work.
It means that it worked for a while.
Or it means that it works for some.
Life is more complex than just black or white.
Be subtle and choose what works FOR YOU!