The only regions that come to mind are Quebec in Canada (where an independence was rejected in a referendum), parts of the southern USA with lots of latinos (of which I recall you yourself have said that most of it is blown out of proportion) and Santa Cruz in Bolivia
Er, and Serbs in Croatia, Bosnia and Kosovo, Hungary and Montenegro which were denied to this right by the same who gave this right to Croats, Bosnians and Kosovar. Bulgarian in Macedonia, Albanian in Greece, Dutch and French in Belgium, Catalan (Corsican voted against independence few years ago…).
Sorry I have to go to work, so I can’t enumerate the list… And that is just for Europe…
BORDERS ARE FENCES: BREAK THEM, DON’T BUILT NEW…