You say you're welcoming to all. But that isn't true, because you refuse access to anyone who doesn't agree to these rules. And a subtantial fraction of people would not agree to them, as you well know, regardless of whether they would ever break them.
That you got them from somewhere else doesn't head off uncertainty in their interpretation. It does raise the possibility that they're a bit of groupthink spreading through the open source software scene, versus something your group believes in enough to have indpendently developed. Historically such things tend to function more as shibboleths than meaningful exercises and I suspect that's the case here.