Nope. It is not advisable to substitute EFAs found in the polyunsaturated and monounsaturated fats for saturated fat. Quite possibly the worst advice to be honest.Sure there is, that's what cholesterol is made from and cholesterol is required for making testosterone.
Your crusade against saturated fats has been shown to be false for at least 15 years now in study after study.
Saturated fat raises serum Apolipoprotein-B, which is the primary driver of atherosclerosis. Lipidologists are quite clear on this.