You would have to show that no disease is caused by microorganisms.
Hmmm, seems like science is kind of a racket. You can put forth anything you want, provide whatever you want as evidence, and expect them to believe it unless they can prove you wrong. So it’s up to everyone else to waste their time proving you wrong.
Why doesn’t the guy proposing the theory try to falsify it himself?
No glory, I guess.
Which I don't allege of course. What is your point?