https://www.cbsnews.com/news/new-pope-could-it-be-american-c...
https://www.cbsnews.com/news/new-pope-could-it-be-american-c...
If there's a political motive in not choosing an American pope until now it's that for most of American history it wouldn't have granted them any influence over American politics. If there's a personal motive it's that until recently they felt insulted that America went for almost 200 years before finally electing a Catholic president.
Tangent: Protestantism is not a religion. The religion is called Christianity. I have seen this trend for quite a while of Protestants (or people born in Protestant countries) of referring to Christianity branches as religions. I find it very segregational. The whole point of all the branches is the same guy whose name begins with C.
But yes, given the state of America today, having an American pope will definitely be an interesting development in the context of many lobbying groups wishing for a vaticanised America.
That said, looking back there were a couple problems with the protestant viewpoint: one is that there's no attempt at explaining god's apparent 2000-year vacation and another being that the bible was effectively nonexistent until the council at Nicaea and I'm not sure what legitimacy there is in them having any authority to decide what is and is not canon unless you accept the catholic church's authority.