No I do not believe good and evil are human constructs., Knowledge that I have power to commit good or evil and I know each from the other is innate. It is not revealed to me through only one desert religion book.
I am a rational theist like our first four presidents. Specifically Jefferson who wrote a lot.
WE CANNOT BE SURE ABOUT GOD OR AN AFTERLIFE
“I believe in both a creative and personal God, a divinely ordered universe, that man has a innate moral sense, and that Jesus was a great moral teacher, perhaps the greatest the world has witnessed.” – letter to his nephew, Peter Carr, August 10, 1787
WE CANNOT BE SURE ABOUT GOD OR AN AFTERLIFE
“To talk of immaterial existences is to talk of nothings. To say that the human soul, angels, god, are immaterial, is to say they are nothings, or that there is no god, no angels, no soul. I cannot reason otherwise … without plunging into the fathomless abyss of dreams and phantasms. I am satisfied, and sufficiently occupied with the things which are, without tormenting or troubling myself about those which may indeed be, but of which I have no evidence.” – letter to John Adams, August 15, 1820