chicagoskycam
Land of #1 Overall Picks
She's been opposed to an all out war through the whole series though, and that is what the new Secretary-General was proposing to start. This also wasn't the Belt of old, they are armed with Martian warships and stealth technology, so they are lunging into a war without a full understanding of the strategic situation while they are weakened, and may actually lose it. They know some part of the Martian government or military has been helping the Belt, so what happens if Mars throws in with the Belt when a war starts? I don't think anyone is pretending that Avasarala is a nice or altruistic person, but she's always been opposed to rushing into conflicts and has always preferred the long game.
She was also left in the dark about what was going on early in the series as Errinwright was running an operation behind her back. There was an assassination attempt against her, I think she has exhibited considerable restraint. As you said, she has always sided with peace over anything else. I think some people need a rewatch, that's not to say she's not a bitch at times and I do enjoy that.