So if they'd have gotten that before the age of nationalism, they would have stuck with Spain? Or would that have encouraged them to go it alone and be a very small but independent nation power brokering between Spain and France.
I am talking at those times... it happened that centralization in Spain did not follow a federal style... so it started as a quest for autonomy, then Franco dictatorship denied their regional cultures and with 40 years of that, aaaand a very important fact: Basques and Catalans are the wealthiest provinces in Spain... so independence pretty much means economical independece, more than cultural autonomy... money money money