It's undeniable that societies in which Jewish or Christian values are internalized have generally been better to live in than societies where those values have been held in contempt. You'll get no argument from me on that, I'd far rather live in Tel Aviv than in Pyongyang.
I can certainly evaluate two moral codes based upon their track records in maintaining human liberty and dignity, and find one superior to another without automatically concluding that the superiority is evidence of divine origin.
GOD IS, and He is a rewarder of those who dilligently seek Him. Be sure that GOD knows whom you are and if you seek Him, He will respond to that seeking for He already knows where you are.