* extremist, allegedly Muslim faith → *Islamismus, Islamisten*
* extremist, allegedly Roman-Catholic faith → ?

We are looking for a term for a doctrine and their followers (“fanatics”), which refers to the Roman-Catholic faith, but is antisemitic, islamophobic, homophobic, sexist, racist, anti-democratic, right-wing extrem, ready to use violence, contemptuous of human life, inciting, revisionist, reactionary, …, rejects the Second Vatican Council, sees Pope Francis as heretic, their majority is creationists and Holocaust deniers etc.  

How is this called in German? 

(This is tagged as [singe-word-request](/questions/tagged/singe-word-request "show questions tagged 'singe-word-request'"), but if more than one word is necessary, this is also OK.)