It's a fox news source so likely to be a misquote
Given the lack of community and mental health issues of gen z in our atheist country, a benign caliphate might not be a bad thing.
However if it comes with oppression of women then it's terrible. Couples then have more children so they have a son which relates to more overpopulation.
Also Ramadan fasting is a problem further from equator with short nights. Christianity worked because it worked in climate appropriate festivals