"Specialist film companies have even been set up in Germany which only deal in so-called 'refugee porn' and 'hijab porn'.
Google searches for both categories have also rocketed over the past four years while popuar x-rated sites including YouPorn and Pornhub list hundreds of related clips.
According to data from the popular adult content platform "xhamster" a tiny fraction of its searches were for refugee porn in 2015.
However, since then interest has rocketed and this year that number is expected to hit a million - every month.
And that is on just one porn platform.
Some reports claim right wing fanatics are particularly obsessed because they want to see struggling "immigrants" further humiliated."