They see tourists and foreigners (even if they're from the EU) as a gigantic target to squeeze and screw as hard as they can. That's what you get when your economy is based on tourism and rich foreigners owning property there: you have to squeeze those hard for it's basically all you have. Officially tourism is "only" about 15% of the GDP but Spain is a service economy and so many of those services revolve around tourism and foreigner owning properties there. Same for the construction sector: they love it when rich tourists have fancy villas built there.

My wife used to own a house there. So did her mom. They sold it all and kissed Spain goodbye once and for all: too disgusted by how the fiscal authorities were treating them.

I won't go on vacation there anymore. Both my wife and my daughter speak spanish and yet we don't plan to go there anymore: she's done giving money to Spain to be seen, in return, as a lemon out of which more juice can be squeezed.

Vote with your feet and you wallet: when a country tries to fuck you, give it the middle finger.