While the exact percentage is debated, estimates suggest that Kurds make up around 15-20% of Turkey's population. This means they are a significant minority, not two-thirds of the population.
It's important to note that Kurds are a trans-national ethnic group and reside in other countries as well, including:
* Iraq: Kurdistan Region of Iraq is a semi-autonomous region where Kurds form the majority.
* Iran: There is a significant Kurdish population in Iran, primarily in the western regions.
* Syria: Kurds are a significant minority in Syria, particularly in the north-eastern regions.
The Kurdish population is spread across these countries, and they face various political and social challenges.