Why bother? They just absolutely showed the known cause and the known cure. - Eat less and exercise.
If the high levels are not affected, then it is not from overeating and a lack of exercise.
The real problem is high levels being normal in that most cholesterol is manufactured by the body and the excess is then reabsorbed in the intestine.
Current lowering drugs prevent or disturb the reabsorbing, thus lowering cholesterol levels in general.
Now, finding a drug that could modify the body’s manufacture of cholesterol would be a real asset, and not just making your stupid lifestyle choices risk free.
Its kind of like spending trillions to medicate and treat a totally 100% preventable disease like AIDS.
This doesn’t work for everyone. some people have genetic propensity towards super high cholesterol levels. My grandmother had normal to low cholesterol level all of her life until she was nearly 70. It shot up without any change in diet or exercise patterns to over 300. She can’t tolerate statins and she follows a diet designed by a nutritionist. It is still over 200. This would be a godsend for her.