A righteous condemnation with no proof and all feelings is exactly the soil the grows facism.
Good point. In fact, I can't even prove that America exists. I can't prove that you're real person, or that I'm typing on a computer, or that I even exist. My own eyes could be deceiving me. I am condemned to a universe full of impenetrable doubt.
I should probably just ignore reason and logic, and instead spend my days shivering and alone, unable to interact with a world where so much is forever unknowable.
Of course, you can't prove that I can't prove that grepfru_it is lying, so really it would be you who should consider your own ignorance. I assume that a sage like yourself has already internalized your own advice and that you strictly avoid engaging in news or debate, since all externalities are unproveable. Right?