I don’t think ideas or ideologies or religions tend to universalize themselves on their own basis
I think the universalizing force is the mode of production, and ideals tend to ride whatever that wave is
Islam is experiencing right now a wave of resistance not thanks to Islam itself, but because the Islamic world is facing attacks by imperialism
Christianity right now lacks a revolutionary universalizing energy because right now most of the Christian world is sitting comfortably inside the USD global imperialist hegemony and the cracks are only just beginning to show, it has not yet entered a revolutionary moment
Christianity used to be revolutionary when it was in a revolutionary mode of production
Further yet, irreligious master signifiers have conquered nations, symbols, orders
There are also counter-revolutionary forms of Islam (degenerate labubu Dubai chocolate) which can be explained not by Islam itself but instead explained by that specific relation to imperialism and the global Mammon empire