The few who practiced such concepts tossed that to the curb many thousands of years ago where it belonged.
My case is that Old Judaism was Henotheistic and that early Christianity was Henotheistic as well. The major argument for the contemporary Jews that the early Christians were wrong was that they were promoting a Henotheistic theological worldview.
I am happy to belong in that camp of the true believers. You may disagree that I am, but I am fairly confident I am right. There is too much evidence in the scriptures and in history. Research your history better and look to God and your eyes will be opened.