Morals and Dogma is by no means considered the “bible” of Freemasonry. It’s one man’s opinions (who considered himself a Christian, though likely an unorthodox one). Very few masons have ever even seen a copy, much less read it or understood it. This is likely to which you refer: http://www.masonicinfo.com/lucifer.htm
As to the original post (assuming it’s true, to which I have extreme doubts), it sounds like the disgruntled ramblings of one individual. Furthermore, Freemasonry in France is a jumbled mess of organizations, “Masonic,” pseudo-Masonic, and other groups- most of which are not recognized as being legitimate by any other group. I would not be surprised if this “Mason” would not be welcome in any Masonic Lodge in the world outside of his own little circle.
So, you are a Freemason, right? What degree? Have you passed under the royal arch? If you read the oaths taken by various degrees, it’s clear that deceit in the service of defending a fellow mason is sworn to.
I don’t expect an honest answer from a Mason.