If you don't think parasite ridden flesh is gross then your meter needs recalibrating.

Even ancient man avoided parasites when possible. Parasites can kill you, regardless of how natural they are.

Dog shit and nightshade are part of the circle of life too, but they seem to be avoided by most.

Something being good because it's 'part of the circle of life', whatever that means, is as blind and irrational as 'all upf is bad by virtue of being defined as upf.'

Life isn't as simple as black and white.