The evidence that rules out an intruder is weak. And there is no proof of it.
Fibres consistent with the cord that was used to make the slip knots and garrote were found on JonBenet's bed.
That doesn't make sense to me. Wouldn't that make it LESS likely an outsider did it?
I'm still open to the idea an intruder did it, though I think it's highly unlikely. But nothing you've said so far shows any kind of likelihood that that's the case.