Sorry for being off topic!
There's no such thing as being genetically an Indo-European. There's no such thing as an Indo-European race. Indo-European is linguistic term and refers to a specific language family spoken between India and Europe. And Kurdistan lies in West Asia and between India and Europe.
Kurds have their own native language. Kurdic languages are very close to ancient Avestan language and other ancient Iranic languages. Kurdic languages are part of Iranic languages and Iranic languages are in turn part of Indo-European language family.
Kurdic language was naturally evolved among this ethnic group and it was never imposed from outside from the invaders. No other ethnic group in the world speaks Kurdic language. So Indo-European Kurdic language belongs to the Kurds only and it is still evolving and flourishing from inside of the Kurdish culture and many Kurdish dialects are a result of it.
Proto-Indo-European homeland was in Asia: be it around the Caucasus, be it around the Caspian Sea, so it was not far from Kurdistan.So of course there must be very close direct links between ancient Indo-Europeans and modern Indo-European Kurds.
Kurdish history is more than 6000 years old and all this time Kurds were known as Indo-Europeans. Also Kurdic language is thousands of years old. And Kurds still speak their ancient and unique language. With other words Kurds were never somebody else
Actually also culturally Kurds are Indo-European people. Kurds still have their native Indo-European legends, stories, history, art, music, tradition, folklore, dances, values and even religion.
Turks are trying for hundred of years to exterminate and destroy Kurdish language and culture. Arabs (Saddam) and Persians are trying that too. But Kurds are fighting against Arabs, Turks and Persians to preserve and protect their (Indo-European) own identity and heritage.
Kurds were, are and will always be Kurdic (Iranic) people connected to their ancient and rich history!