Thank you for your reading and comment, @julescape. That you qualify my treatment as insightful and detailed, fills me with satisfaction, for nothing could be better for someone trying to provide a critical look at an author and a work. That you refer to Rimbaud as "a true poet" tells me of your experience as a reader and perhaps as a writer.
It is more difficult to have an opinion about the other. From our own experience, we know that in the fiery times of youth we rebel against any imposed beliefs or norms. Having been raised in a predominantly Christian and impositively Christian culture, it is logical for a rebellious spirit to rise up against it. Some knowledge would surely have Rimbaud of other religious traditions. Her sister, in a well-known text, warns that she converted to Christianity. As with Nietzsche, it is difficult to verify the veracity of this. But, if it has happened, it is perfectly acceptable.
Thank you again.