There were various reasons for refusal - the Earth needed to keep a low profile and peace right now, having a fleet might cause other civilizations to feel threatened, the Kepler was restricted by the Silent Sailing Convention and couldn't own a fleet, and the solar system had a lot of unresolved issues right now...
Is this even human language?
In short, Kepler would have to sort it out on their own, but it couldn't stir up trouble. If it would solve issues on its own, they would support it. But absolutely not at the expense of leading the war to the Solar system. Standing at the highest point of human survival, they could justify anything. This was pretty much the recent tune of the Solar System Council, loudly proclaimed.
Gasmi finally sat up and scratched his head, "Captain, am I really that weak?"