I have a problem with the original details.
If my boarding pass says my seat is 23B, then I go there and say, "Excuse me, you're in my seat." Or I the flight attendant can do it for me.
Why the confusion on which seats were being used without the right to do so?
Good question.
It was a WN flight....
Which means there is no assigned seating and therefore it's a first come first serve.
And there i would think...
1. I can get the seat for free.
2. Let someone else hold their kid for 3 hours until they come and force me.
Now I'm not trying to give a free pass and say they were 100% fine, what I am saying is that it can be understood and I don't see the big sin here, because if there would have been assigned seating this situation wouldn't happen so WN sort of has a part in this as well.
Okay okay I get it i should not turn this on WN they are a good airline but there is no perfect in this world.
P.s. in my WN flight recently I sat next to a 400 lb(i think, maybe KG) man, I guarantee that you had a better flight then me mister chillul hashem.