Dios y patria

It doesn't take a genius to realize that Christian Nationalism (like any other religious nationalism, for example in Iran) is dangerous, because almost nothing can be more dangerous for a country than when it's ruled by people who are 100% convinced that they were chosen by none other than the Creator of the Universe himself to fix the world. And fixing the world means forcing their religion on all people. Christian nationalists believe in an angry, vengeful god who does not tolerate dissent and is eager to punish Humanity. Since God is not here to personally do it, his followers will do his job for him. Christian nationalists want to placate the wrath of their god, by imposing his will, which, in the case of this deity, is written in a heap of copies of rags of parchments from the Iron Age, with myths also from the Bronze Age.

I recommend the book "Liberated from Religion", by Paulo Bitencourt, which brilliantly exposes this great danger.