You are dead wrong about France. While it is no longer the Catholic bastion it once was, I can guarantee 0.4% of Bible Believing Christians is outrageously ridiculous. I lived there for the greater part of 30 years and in different parts of the country from Paris to the South.
If the 0.4% number is low, it isn't far off.
https://international.la-croix.com/news/evangelicals-in-france-continue-to-grow-in-number/6155#
Thus, while 2010 statistics indicated that Protestants comprise 2.5 to 2.8% of the French population, the 2017 survey shows that they now number a little over 3%.
Take into account that not all Protestant mainline demoninations are evangelical. Some, like here in the US, are off the Biblical reservation (such as United Church of Christ, Presbyterian USA, Progressive National Baptists, etc.) The percentage of the population of France that are evangelical, Biblical Christians in France is still very, very, very low.