There was a little confusion about what I meant by pagan missionaries, so I replied this to clear it up:
"I was thinking more along the lines of Pagans trying to convert Christians, and natives try to convert the Christians who were trying to convert them. Not Pagans trying to convert other Pagans. I fully realize native religions were considered pagan already, my great grandmother’s family is Cherokee Native Americans. I’m not saying it should be done, it was just a random thought I had. I was listening to missionaries from The Congo speak on their experiences and wondered what the world would be like if the natives and changed it up or if now in the modern age if there were Pagan missionaries trying to convert Christians. "