I wholeheartedly agree on seed oils. Their manufacture process alone keeps me from them. However, I’ve found some information that directly contradicts the statement that human digestive juices are more acidic than carnivorous animals and it is more likely humans have evolved to eat a plant based diet. I love beef and other meats, in particular, lamb and seem to have a much better experience eating them than plants. It is probably more likely that humans are ,evolutionarily  speaking, omnivorous. It is also quite possible, and very likely, that everyone is different and can thrive on different diets.