There are some healthy and natural oils, but yes the vast majority of the oils we use are cheap, processed garbage. The real issue is that our bodies aren't designed to consume, for example, vegetable oil in mass quantity because the amount of actual vegetables you would need to consume to get that same amount of the oil is simply impossible to do.
Those refined oils aren't handled in the same way the healthy, natural ones are so it contributes to the metabolic damage.
