parasite's role?

Hi RG
I have a difficult question that has been on my mind.
I have heard that plants only attact bugs if they are weak. Forrests only become diseased with beatles if sth. is wrong with them in the first place. Honey bees have been dying from a disease. But only the ones that are raised non organic. The ones fed sugar... And I heard that worms and parasite are in the body if it is weak and diseases to help remove and digest toxins. There is evidence that leaches and others are used in hospitals for very particular problems and pigworms help people with irritable bowel syndrom heal when ingested.
If it is true that a weak body has parasites and we cleanse them out. Won't the wisdom of nature overrule our action and bring the parasites back as soon as possible with a vengance.
And why are kids who play in the dirt etc more resilliant than kids in sterile environments? And how are antibiotics different than a parasite cleanse? Does it weaken the body, too?
I am already on the humaworm cleanse but I would love some peace of mind regarding these concerns.
Lilly Tweet