What’s the precise sense of “attribute” in that claim? It’s not obviously implausible to claim that the more groups are competing with other, the less likely it is that any one can become totally dominant, and so the more likely it is that most of them will eventually see mutual toleration as preferable to unwinnable conflict. This doesn’t have to be an intended effect of the new sects to end up being an actual effect.
What’s the precise sense of “attribute” in that claim? It’s not obviously implausible to claim that the more groups are competing with other, the less likely it is that any one can become totally dominant, and so the more likely it is that most of them will eventually see mutual toleration as preferable to unwinnable conflict. This doesn’t have to be an intended effect of the new sects to end up being an actual effect.