Many people still don't understand the science of disease.
The number one thing that makes one person die and another person survive the same disease is their genetic background.
No, OmniGrub, I did not say the ONLY THING -- just the most significant thing.

Some people are genetically predisposed to being able to fight viruses, live longer and never be bothered by cancer.
Others are very susceptible.
Ever wonder why doctors ask for a family medical history? Because, if your father, grandfather and great-grandfather all died in their 50s from a heart attack, then you being 55 and having chest pains might be of more concern that a 70 year old whose father died at 98 while skydiving!
Trump doesn't smoke, doesn't drink, and has lived a life with access to anything he wants or needs. He always appears to be someone who doesn't stress over much. Stress is a major killer.
If his genetic make-up is able to swat down Corona with the aid of a few therapeutic meds, it might not be the example that encompasses all people. But that's not the point.
Trump was one of many at events who tested positive up to a week or more later. To assume he's the source is idiotic. Unless tracing shows 3 or more events where he was the only one attending all three, there's no way to even voice this conspiracy theory.