I already knew you would post about the Spanish Constitution and the votes. Pointless; I'll tell you why:
As I said, the Catalans never had the oportunity to recover their own Constitution, since Spain never asked about this (the only valid question if you consider the true history). Immediatly after the dictatorship with all the Spanish army ready to invade Catalonia if necessary, tell us what other option the disarmed Catalans had in that context, please. Obviously no choice, but with the new promises regarding autonomy, most Catalans thought it would be possible in a truly democratic state to achieve their goals and decide their own future. Some politicians like Jordi Pujol tried to work hand by hand with Spain, nothing wrong with it: he wanted to achieve benefits for the Catalan people and find out the best way to remain all together, that is, of course, respecting the Catalan singularity. But it was your Spanish government, and not Catalonia, the one which denied all claims and discussions. Because of this, now Jordi Pujol is another independentist, he realised there was absolutly no possibility with Spain. That is also why other Catalans, nationalists, but not independentists, nowadays want to get out of Spain as soon as possible.
In short for you to understand: it is all your fault (I mean people like you and the Spanish politicians). Your attitude is not democratic at all, doesn't matter you repeat the same lie like a parrot a thousand times. The Catalans choose to decide if they want to remain in Spain or leave, that is what the votes told us in the last elections. And if Spain pretends to be a democratic state as you say, then what to do is so clear: let us vote, follow David Cameron's example.
But you won't do it. So please, no more useless lessons. Thanks.
PD: I highly doubt you voted the Spanish Constitution. I didn't, most Catalans who are still alive didn't. Time to think about it, your Constitution means nothing to us. Trust me, it won't stop the process, you can bet on it.