If they managed to do that, wouldn't they just be creating another version of Chu State?
How terrifying would another version of Chu State be?
Just look at Ning Country, which is currently being beaten down, to understand the dangers involved.
If Xichuan were to unify the Barbarians, then, driven by the cold waves and also in pursuit of more interests, their next step would inevitably be outward expansion.
And in which directions might Xichuan expand?
To the north, they've amassed an army of over 400,000 at Shuofang County, occupied by Wei Country.
To the east, they've similarly gathered an army of 500,000 to 600,000, still in the county of Guannei, the capital of Zhou Country.
To the southeast, they have only about 100,000 troops, and Chu State's Hanzhong County, where there is just one Inborn Grandmaster.