Give up, Its never going away, Be happy and live in harmony with the world. 90% of your existence depends on the help of other germs/worms/bugs to keep you living.
This is not true and harmful to spread this information.
I agree that some bacterias are known to help the human body to digest some foods but parasitic worms are never beneficial (especially when the load is too high).
The use of parasitic worms to regulate (decreases) the immune system response only demonstrates the failure of scientists/doctors to understand what is causing a problem to the body which needs this kind of therapy.
Try to lower the load or parasitic worms in your body (and also eat beneficial foods) and you will see what it means to have a lot of energy and the ability to act with strength, speed, agility and the ability to think clearly, fast.
I have also read reports that the intelligence (ability to understand, to learn, to improve their skills) of children in poor villages can be increased only by lowering their parasitic worms load. So this directly contradicts what you say.
What you wrote represents only your view of the world, not the truth.
This is not because the human body manages to survive when it is infected by parasitic worms that parasitic worms are necessary for our survival or beneficial in some way. It seems to be the contrary : parasitic worms are opportunistic organisms who want to find a body to be protected, be fed, and to reproduce and spread their eggs everywhere. And the regulation of the immune system is one of their weapons, i don't see this as a benefit for us.
Nature is not your friend, others organisms are not your friends (most of them), if they would be, we would all be in perfect health and immortals. That's not what i see around me...
I bet that even hygienists are infected by parasitic worms and have health problems because of them.