Measurably not so. Elecciones al Parlamento de Cataluña - Wikipedia, la enciclopedia libre is a good entry point to reach all result for autonomic elections in Catalonia (not very heavily attended, around 60%, evidence that people were not all that concerned about the autonomic government). ERC, traditionally the only independentist party of reasonable size through the years, got 8% of votes in 1980 and 10% in 1995, which would be a lot lower percentage if you considered the whole voting population (independentism would be a huge issue for somebody who feels highly “oppressed”, so one would assume most independentist would actually bother voting). Up until 2009 support for independentism in local government opinion polls was below 20% (12,9% in Nov 2005), as can be seen in graphs above.
The average Joe did not care about the Statute of Autonomy; it was requested by politicians. When it was finally voted in a referendum, not even half the potential voters showed up (48%). The ruling of the Constitutional Court over the Statute took place in June 2010, yet the big jump for independence support in opinion polls did not happen until Oct 2012 (again, see graph above). November 2010 election (can get there from first link) did also not register an increase in independentist vote (ERC got 7%). So blaming the trimming of the statute (as if the Constitutional Court could choose not to trim autonomic court rulings being above national ones) for an increase in independentism is just a lie repeated many times that clearly does not hold up.
On the issue of “españolization”, that text books in Catalonia often try to portray Spain as something alien as best, can also be seen in this extensive report (http://www.ames-fps.com/adoctrinamiento_libros_sociales_5y6primaria_cataluna.pdf) for text books used in primary schools, an issue that is denied by independentists everytime despite the evidence (each element being pointed might not be outrageous on its own, but overall they paint a clear picture to a child).
