WTF!? Seems that your brain is getting a bit confused by now, hahaha
You are mixing everything and asking again the same questions:
Why Spaniards from Catalonia cannot vote secession? I answered you already: against European Constitution and Spanish Constitution. Change those two constitutions and then you will be able to legally vote secession.
The Spanish government by definition cannot become occupational forces in the region of Catalonia. A government cannot be occupational forces in its own country!? Hahaha
Failed concept? A country with a history of thousands of years a "failed concept"? Hahahaha, I know that is what the fascist secessionist have taught you since your childhood, so I understand that you are a bit confused... but please, think for your self. Spain is a great country and one of the main countries in the European Union.
I don't want to censor anything, on the contrary, it is your fascist secessionist politicians that have been censoring and teaching hate to anything Spanish for more than 30 years to move forward their secessionist agenda.
Debt rating? Wow... we get in a completely new sphear of knowledge... are you ready t handle it? The western economies are all broken because of social democracy and the welfare state. The US is the biggest debtor in the world with over 30 US$ trillions of debt that they will never be able to repay. We could talk hours and hours about that, in any case, the region of Catalonia is even more broke than the whole of Spain to which it belongs, and the region of Catalonia is part of the reason for the debt of Spain, obviously. In fact, I would say that Catalonia and the Basque regions are the main responsible for the debt of Spain because it was because of them that the crazy system of having 17 inefficient states multiplying by 17 the inefficiencies. Without the autonomous regions will be much more productive and efficient. Think that California has one single government and is of a very similar size and economy than Spain. There is no need at all for 17 mini-states but only one single government for all Spaniards.