Kurds in general (i mean the average Kurd on the street) do not cause serious unrest. The truth is, Kurds in general are even more conservative muslims than Turks, unfortunately they are the silent majority whereas the pkk and its political wing are the loud minority. If Kurds in general would have felt they are not part of Turkey, they would have listened to pkk's call for serious upraisings against the Turkish state, which the Kurdish population never seriously did aside from one city and some towns here and there. If Kurds want to separate from Turkey, all they need to is ask for weapons from the pkk and turn the south east into a no-go zone for the Turkish police, army and anything Turkish. This has never been the case though.
Kurds are already playing an active part in Turkey. Saying that they think that 'Turkey is for Turks' would be denying all those Kurdish politicians, officers, businessmen, artists, Kurds living in west Turkey etc. Pkk's political mouthpiece HDP is even in the Turkish parliament for love's sake. Such a disgrace. Can you imagine a pro-isis party in Europe or US? If such a party existed there, they would shut and arrest them immediately, but trust me, when Turkey will do the same to HDP, the same west and russia will immediately blame Turkey for 'surpressing freedom of speech' or whatever.