The palestinians also did not have a national sense of self untill they were occupied for the better half of a century … The german national identity needed Napoleon to really take of (and many more work Like that )

And ‘mono ethnic states’ was bog standart for emerging nationalnstates - it just took some.places longer to create a national state and the according nationalism - hardly anything specific about ‘the slavic mind’

Well they had the downside of the russian army being at their borders and a massive russian speaking minority …