What about when you sit next to someone who smells bad and their smell over-spills their area and offends the person next to them? What is the line in the sand we draw for them?

What about when they are just plain ugly? and their ugliness spills over the armrest and starts to affect others flying environment?

What about when people are TOO good looking and it starts to cause tension in the cabin because someone who is traveling with their significant other glanced over and noticed the beautiful human being and their spouse noticed them noticing and now their second honeymoon is ruined because they weren't only noticing the one they came on the flight with?

Going down the fat seat rabbit hole can quickly spiral out of control.

I think everyone having a little more patience is probably the best answer here.