Well some olive oils may be fake, but consider the plight of the Chinese:
Most Chinese cooking is done with oil at some stage. Cooking shows in China have professional chefs using a rich and dark looking oil. Consumers go the the store to buy a rich dark cooking oil so their food will look and presumably taste like a professional cook’s food.
Sadly, there are no regulation or inspections of bulk cooking oil carriers. So a truck that hauled industrial oil on one trip, loads up on cooking oil on the next. No clean out. Goes to the bottler and then to the consumer. Nice rich and dark looking cooking oil, straight from the petroleum refinery.
China’s Largest Edible Oil Crisis: Mutual Harm Among the Poor Is Incurable
https://www.youtube.com/watch?v=eiOZIAUGrgw
Another reason I prefer Europe at this point. Just came back from Spain, where you don’t have to worry if the olive oil is fake or not. It’s nice to be able to eat what you want without worrying whether or not your getting pumped up with poisons in the food.