If the city is really large it will be highly unlikely not to see many people from turkey, africa, etc.
I see plenty of foreigners from what would appear to be ethnic backgrounds, the point is its not as much of an issue as youre portraying, but then again ive never had a problem pulling women as you do so could never blame them as well as every other possible wimp out excuse as you have.
Poland should try to encourage immigrants from Slavic countries instead of third world ones.
Hows that going to work? and why would they come? what - Slovakia for Poland.