The difference here is that Catalonia is an integral part of Spain, not a colony. They are perfectly well represented in every institution, and have in fact had

The difference here is that Catalonia is an integral part of Spain, not a colony. They are perfectly well represented in every institution, and have in fact had a central role in most governments since the end of the dictatorship. Both situations are totally different. And, by the way, they did not only break Spanish laws in their road to independence, they also broke the rules of their own regional parliament, laws they had created.