BNWO is a kind of religion.
In the past, most people could neither read nor write. Religion was spread by missionaries, it took centuries.
Modern media spread NBWO quickly.
Refugees are missionaries.
Many girls, women and couples in Europe and other parts of the world have been waiting for this for a long time(until now it has only been available on the North American continent).
Many missionaries will come from Africa and will also convert girls, women and couples who are still undecided or opposed.
This will take decades, not centuries as in the past.