There used to be a religion on Beluaterra called
The Living Earth that was similar in some respects. They worshipped Zisa, the Earth Mother and they were pacifists too. Consequently, it was a very small faith. I was briefly a member and it only had a few nobles and a smattering of temples. But they had managed to carve themselves a small niche in Mesh over some years. So what you want to do is possible, but it probably will be a struggle.
