Ok, smoking, air pollution, mining runoff and water table poisoning, industrial waste, low-nutrient density foods, processed foods, sugary foods, red meat, Soda, energy drinks, lack of preventative care, lack in general of practical and affordable healthcare, alcohol, I could go on with hundreds of other things. But sure, seed oils are the problem. All of these are much more harmful to society than seed oils. Sure, are they used in excess? I'll grant that, but replacing them with animal fats is awful.
Linseed oil (flaxseed oil) is high in ALA and omega-6 fats, it could cause a REDUCTION in inflammation in some cases. It has the best omega-3:omega-6 ratio I know, and plenty of others are not harmful.
It sounds like you found something that works for you, but please keep the misinformation out of this convo.