Whoops, you are right, i don’t know much about pakistanis separation of politics and religion today … I went with the word used in the title of the post without considering it’s exact meaning(s), which are now :

https://en.m.wiktionary.org/wiki/Islamist
Islamist (plural Islamists)
1- (now rare) A Muslim. [from 19th c.]
2- A scholastic Muslim who specializes in Muslim academics. [from 1910s]
3- A Muslim who espouses Islamic fundamentalist beliefs. [from 1980s]

interestingly, it should be easy to say that USA has now become a Christianistic Christianist country.

Unless France gets there first. /s
Also, isn’t Pakistan and Islamist country ?