Unfortunately there have been many examples of bad behavior on both sides of this fight. I get frustrated by them but try to remember they are produced by the 5% club and not put the rest of the group in with them.
Human nature tends to highlight the bad. It seems to take an extreme case of niceness to have it told.
My one jumpseat experience with the west was a 95% good one. My crew was trying to get on an earlier DH home and it was about departure time. The AF/A took my bag and stowed it for me. The captain was extremely friendly and said he wouldn't leave early in order to give my F/As a chance to get there. The F/O turned and looked out the window when I offered my hand, but that was all.
The worst jumpseater I have had in years was an east guy that thinks the world revolves around him.
Well said.