“What is the right or concept of freedom that denies the kurds independence? And the same question for Barcelona?”
An overwhelming force to stop it.
In these cases, might makes right.
That is why Slovenia, Croatia, the U.S., Eritrea, Ireland, Indonesia, Indochina, Bangladesh, and all of S. America are independent, while Chechnya, Corsica, Tamil Eelam, Tibet, and Cabinda are not.
The former fought harder and wore down the nation they are succeeding from. The later weren’t so lucky.
Might doesn’t make right it never does. Would the british have been right had they won the war for independence. would all of Jeffersons words been wrong? What every force you exert on them, free people have the right of self-governance. did you go to school in the soviet union?