The best evidence that I've found for the superiority of saturated fats is that the body converts excess calories to what? Monounsaturated and saturated fat. This is the body's way of saving excess food for a rainy day - why would it store it in this form if it is unhealthful for you?

Yes, you want healthy omega-3s to offset the omega-6 polyunsaturated fats in industrial seed oils. Eliminate those seed oils and there is less need for omega 3s.

I believe it was the notion of "heart healthy polyunsaturated fats" that was promoted with little sound evidence.