The fact that 10 percent of people who contract HIV don't get AIDS basically demonstrates the all-powerful nature of the immune system.
The immune system is impressive, but this is a taaaaad hyperbolic.
After billions of years of evolution and uncountable virus generations, often measured in minutes, don't you think that the body should know by now what a virus is? Does it not follow that all of the possible tricks have been played out by now?
No it doesn't. Knowing what a virus is and combatting it are two different things. Viruses also evolve and grow more resilient or subtle, they change tactics, etc...
Viruses evolved together with life. There are only so many chemicals and tactics a sneaky virus can use. Life sees it and defeats it and creates a genetic memory. It's pretty unlikely that after a virus can overwhelm a healthy immune system.
Malaria has been killing people for thousands of years without any prevalent immunity arising. There was no immunity before the industrial revolution and mortality rates have only gone down with the advent of modern medicine. Ditto for small pox, polio, etc...
The human body has neither infinite capacity nor resources. You must admit that there is an upper limit to its capacity to fight off invaders and if there is then there is something that conceivably could exploit this.
Even Ebola only has a mortality rate of 50% (on average). Ebola! How can this be? Do these African doctors have some kind of advanced medicine that we don't know about? No. It was defeated by the immune system. The people in Africa are around less modernalities and have healthier immune systems than we do. The mortality rate is lower in modernized countries like Liberia and Nigeria and higher in less modernized countries like Ginuea. Take away Africa's pesticides and cosmetics and air pollution and it is clear that the survival rate would shoot way, way up.
This is not in dispute, but it does not follow then that a country that has modern medicine and sanitation and also somehow completely eliminates pollution will not have disease.
So you tell me, if the health of the immune system has nothing to do with diseases like Ebola, why are there so many survivors?
Has anyone claimed this?