Kurds are already nationalist and are becoming less and less religious and pro israel. The kurdistan project is aimed at weakening turkey since they have been distancing themselves from the west recently. Its better not to support them since this will give rise to other separatist movements wanting to split the ummah.
Kurds who voted yes are basically racists, they want an ethno nationalist state only for kurds to live in, when there are other minorities who live in that region such as muslim turkmen and arabs, they face violence from kurdish nationalists.