Earlier quoted context omitted.
For the vast majority of Spanish history, rulers viewed public dissent as tantamount to open rebellion and reacted accordingly. Same with most European countries, if not all.
And how many hundreds of years and how much blood was spilled before the principles of the Enlightenment and the French Revolution took root in Europe? Would it have happened faster if instead external parties tried to push it on Europeans?
50 years ago we had less freedom than the Chinese have today. Then the tyrant died of old age, and the absolute monarch that succeeded him decided democracy was the way to go.
Latin American countries have the same cultural roots as Spain. They were part of Spain for more centuries than they've been independent; and even after independence the cultural exchange has been continuous. Today, some are free, and some like Cuba or Venezuela are tyrannies.
That fatalism about some cultures not being ready for freedom is too simplistic when faced with the details of reality. The Chinese of Hong Kong and Taiwan handled freedom no problem; one from within, the other "pushed on them" by the British.