Those Catalonian politicians who support independence from Spain are no freedom fighters. They are on average even more socialist than their Spanish counterparts. They want to remain in the EU. They just don’t like Spain. Remember that during the Spanish Civil War Catalonia was a bastion of the Left. Not much has changed since then.
I don’t argue Left vs. Right so much as pro-EU big central government versus decentralized government anti-EU.
I’m more capitalist than socialist but not crony capitalist fake Left like Canada’s Liberals or Tony Blair’s brand of Labor Party that Corbyn trounced in recent leadership contests.
There’s a lot of lefties in Catalonia but Catalonia is the wealthy part of Spain like northern Italy bailing out other parts and being crushed by the EU regulations etc. etc.
The League of Northern Italy is more to the Right but their fight is the same as the Catalan Left.