Demosthenes X:
To be fair, the League probably would have been fine with the Coalition if someone hadn't decided to set up a base on a dying world and write off its population...
To be honest I'm less worried about the league having a problem with us and us having a problem with the league.
It can hardly be considered a neutral entity since it's based on Coruscant and TNO seems to have the lion's share of the control over it. Now if some actual neutral planet set it up, and said planet was free from any government control permanently. And if the Coalition and TNO had equal votes in the league. That would be something we'd be interested in. We're not interested in the give TNO a way to pretend all the core planets they don't physically own are under their protection.