Various authors have described the Netherlands as a ‘reluctant country of immigration’. Although the Netherlands was de facto an immigration country, until recently it seemed unwilling to admit it.
Similarly, with 174 different nationalities in the city, Rotterdam is characterised by ‘superdiversity’. But unlike cities such as London or Amsterdam who celebrate their diverse populations, Rotterdam is rather reluctant to do so.,
Erasmus School of Social and Behavioural Sciences

Snel, E, van Ostaijen, M.M.A.C, & 't Hart, M.E.J. (2018). Rotterdam as a Case of Complexity Reduction: Migration from Central and Eastern European countries. In Coming to Terms with Superdiversity (pp. 153–171). doi:10.1007/978-3-319-96041-8_8