There is a difference between "left-wing" as in economic AND social leftism vs the sort of neoliberal, "Third Way" politics, which equal socially left-wing, but economically center-right.

Most of the "social democratic" parties in Europe are that way these days. They don't really champion economic populism, wealth redistribution etc.

And IMO there are no (neo)liberals in Spain, if you listen to facts instead of words.

Every party currently in Parliament is big-state. PP raised taxes over Zapatero levels and public expenses even more, systematically breaking expense limits every single year they were in government.

They're pro choice, pro LGBTQ etc. but also very much pro things like privatization.

As for "Is that something that doesn't cost money?" - that's a childish question that is almost not worth answering. Maintaining a functioning society always costs money, there's infrastructure & services to maintain.

Taxes are going to get collected, so for me the only real question is if they're going to be spent on moving the country forward, supporting those in need of support and improving services, (healthcare etc.) & infrastructure, (bridges, roads...), making sure publicly funded research stays public, going after corporate tax evasion and so on... or if they're going to be spent on bloated military contracts etc.

Sadly, the supposed left-wing in most of Europe today is not focusing on healthcare, infrastructure etc. in a major way and thus the distinction between them and the right seems rather thin. They're both fairly pro-corporate, thus the main distinction is the social politics, which rarely address people's economic concerns.

As for big state, I don't know, Mariano Rajoy, a right-winger was willing to send "the State" to violently suppress an independence referendum. Not sure how that squares with you.

Wow, thank you. That actually saves me time. Once somebody answers like that, it's clear that any effort to reason would be a waste.