I can remember that days before the HDL/LDL distinction. Now it turns out that moderately high LDL is not necessarily bad if it not accompanied by other negative risk factors (obese, pre-diabetic, etc).
The fact of the matter is that there is a single diet that is ideal for all humans, just as is the case with every other animal species on the planet.
Homo Sapiens are obligate carnivores and we do best when eliminating all plant-based material from our diet. And we certainly don't find heart disease in the indigenous populations that follow an entirely carnivorous diet, such as the Maasai and the Inuit, unless they have adopted a more plant-heavy, processed-food Western-style diet. (Note that we have to "process" plant-based food, but we can just eat meat and eggs raw -- another sign that we are obligate carnivores).
I agree that high cholesterol may be a problem is you're obese, as almost all Americans are, and if you don't follow a 100% carnivorous diet focusing on red meat.
To quote the link, "But too much cholesterol can pose a problem." If you click through, "Learn more about cholesterol"[2] there are things in it like, "Cholesterol can join with other substances to form a thick, hard deposit on the inside of the arteries. This can narrow the arteries and make them less flexible – a condition known as atherosclerosis. If a blood clot forms and blocks one of these narrowed arteries, a heart attack or stroke can result."
[1] https://www.cdc.gov/cholesterol/ldl_hdl.htm
[2] https://www.heart.org/en/health-topics/cholesterol/about-cho...