As mentioned by others this question has been asked and answered many times (please do a search).

If an Indian or Filipino are holding a flat or two it is up to them whom they will accommodate in those flat/flats. Nobody can insist to accommodate any other Nationalities as it is their own personal matter. There will be plenty of flats available now for which you should pay a higher rent (please go through the classifieds) and those flats which are occupied by Indians or Filipinos will be cheaper ones as many of them are low paid people (even if they are skilled). Let the Indians and Filipinos live in their flats.