You want undisputable, concrete, verifiable by the senses "proof," Raf, before you can believe it? Ha!
You will never have or get it, until it's too late. Why? Because that methodology or approach just doesn't work. Never has and apparently, it never would. God has already tried it for hundred and hundreds of years with Israel - yet, here you are, thinking you're so much better, smarter, or less stiff necked than they were. Believe it or not, the law was actually given to convict Israel (separated and elevated above all other nations of the world), that they - at best - were still... well, in your words, outright stupid and in need of a diaper change.
Ya, you go, Raf. Have your fun here. You's (and so many others nowadays) are all so much smarter and more intelligent than all them back then were!