You must also factor in that, especially in the case of Muslims, even in Europe or the US, to convert to Christianity causes them to be cast out of their families entirely. In the Middle East, it is not just being cast out by family, it is a LAW of many of those countries that the convert (and his wife and children, usually) will be executed. For a woman to convert from Islam, in the Middle East, would mean losing her family, and likely her marriage (if married), having her children taken away and then being executed. Even a woman in the US who converts from Islam to Christianity would be cast out from her family, most likely, and the same for a man. Muslim countries, for the most part, have laws which prohibit anyone from evangelizing or converting anyone from Islam. Even the Christians in those countries, whose ancestors were also Christian, are keeping their heads down a LOT. They are often the target of Muslim groups, have their churches bombed or burned. Islam is not tolerant of other faiths at all. For others, in the US or Europe, raised in different denominations of Christian faith, it is still sometimes difficult and places a strain on family relationships. For an Orthodox Jew to convert to Christianity, results in the family declaring them “dead” and saying the “Kaddish” or “Prayer for the Dead” for that person, and considering them deceased from then on. Modern education is easing the way for many to convert from the “birth” religions of their families, but it doesn’t completely stop the pain and dislocation caused by those relationships being torn apart by conversion to another Faith tradition.