Appreciate your post.Wow. Of the many things one could call Besoeker, "ignorant" is not one I would pick. Why the arrogance and animosity, Sahib? It's obvious that he wasn't suggesting that Ohm's Law can't be proved, just that it can't be proved by taking measurements of a physical circuit--only verified.
Ironically, you're ridiculing the man for saying essentially the same thing you did. The only difference is that he said it over a week ago (and he was polite about it).
I try to remain polite. Sometimes the maharajah tests that.