There are places where anti-Christian violence has become stunningly routine, including North Korea, Eritrea, Iraq and Syria, Nigeria, and India. The Global Council for Indian Christians, a largely Protestant body in India, estimates for the last decade, there has been an average of one violent assault on a Christian in their country every other day.
this doesn't include places like the Philippines, where terrorists attack Christian villages and caused thousands of people in a mainly Christian town to flee, and where Christian activists defending civil rights and the environment are killed. (often these are linked since the rich want to exploit the land owned by the poor or indigenous people)
And I suspect this doesn't include those, especially clergy in Mexico and Colombia who were killed for opposing the drug cartels and gangs. Heck, I suspect it doesn't even include those in the US who are killed by gangs because they preach Jesus, or because robbing churches/church workers, are easy targets.
Finally, I should ass tat the priest killed was French, but the pastor of the church, and many who attended the church, were African immigrants. The press is not noting this, but it may be the backstory on why that church was chosen.
Maybe the pope needs to stress the importance of immigrants to evangelize their new countries...