If it’s not a causal factor it’s not causing the problem. Maybe it just happens to be present but so what.
Everything in their data base is after the fact data. Worse than that, much of it is self-report. It’s fun to look at the correlations but it’s not explaining anything causally.
I said it might not be THE major causal factor. It has helped corrupt and pervert our society to the point where marriage has been poisoned.