Power, that is what it’s all about.
The Christian Church lost a lot of power when the Muslims conquered Spain and other Mediterranean territories hitherto Christian.
The Church counter attacked and eventually, a few centuries later recovered Spain and other territories and then went on the offensive in the Levant ( the Crusades etc).
Ever since we have had a power struggle between these religions, very similar in their origin but totally different today, never forget that the underlying struggle is still with us alive and kicking, whatever anyone says.
It is who comes up top dog and nothing else.
The problem today is that a third party has entered the scene: China.
It is no longer Christianity, in all its manifestation including Judaism, against Islam. China has something to say radically different in this matter.
We are entering very interesting times indeed.