So is my gut but if I smeared my insides on my body I would likely fall ill. Even pathogens form a living ecosystem.
Or, to put it a different way,
> Cars have windows and can go. Houses have windows and can’t go. So it’s not the windows that make the car go
Speak for yourself. I know this guy called Howl...
Your insides are different from your outsides. Your skin has a different microbiome than your gut. Hyper cleanliness on your skin kills beneficial microbes that maintain an equilibrium when they're alive.