As someone that has lived in Spain for many years, I can assure you the Socialist & Communist government of Spain is on its way out, they came to power without going through a referendum, as the Socialist didn't have enough votes they formed an alliance with the Communist party and the independent parties of Catalunya, general elections will take place this year, they will lose, but once again they leave Spain with an absurd amount of debt, highest unemployment rate of the EU, an economy completely dependent on tourism, massive taxes left and right, everyone with a bit of money has left or is doing everything they can to hide their wealth, many YouYubers have gone to Andorra, others have moved to Portugal under the NHR program.
The future of Spain is very bad, as the economy gets worse and worse, taxes have to go up and up, sooner or later they will have to get rescued, it's sad but that's the result of Socialism, and as far as the wealth tax, that one isn't going away anytime soon, the central government doesn't allow the different regions to implement their own policies, some regions have inheritance tax, others don't, but the Socialist government has already said they are ready to pass a law across the country so everyone pays inheritance tax.
Spain is no longer a country to live in, many better options out there...