I'm not sure what you mean by we "ghettoed" these people... It's true that these people live mainly together and they tend to live in places where not many T/Cs would choose to live. This is only natural though because these people are the lower class of people in Turkey, and their main objective in Cyprus is to work and earn money for their relatives both in Cyprus and back in Turkey. So it's not surprising that they form the lower class of the community in the north and they live in low class places.
No! I never mentioned Nazis, the verb existed even before them. Here's the entry in Oxford Dictionary.
"an isolated or segregated group, community, or area"
In any case the description you gave matches exactly the use of the verb. And this is exactly what I oppose. NEVER should a part of ANY society be marked as "lower class" and left to segregate from the rest. The society should try to support these people, treat them as equal and give them equal opportunities. At the same time they will have to face the same challenges and conform with the rest...
This is way out of our discussion though... or is it?