Your comment heavily implies said demographic implements or even enforce their belief on to their destination country. In reality, it is quite the opposite - and most often in drastic and involuntary terms.

It is telling that you chose to concentrate on the Islamic population

Are you familiar with the concept of "intolerant minority"? [0] much like you don't a majority of people to force most processed juice to be kosher, you don't need a majority of people to change (relatively low-stake) cultural practices of the host country.

[0]: https://medium.com/incerto/the-most-intolerant-wins-the-dict...

They talk about muslim people being so influential but choose to forget the cultural imperialism and unnatural prudishness of the US of A. There's a documentary on Netflix, "Sex and Love around the world", the "Berlin" episode was mostly around how weird are Germans for going nude.

No, it is not implying that at all. They only need to keep their beliefs to affect the number of people going to nude beaches.