They already have. Their forces are called the Socialists.
The people of Córdoba are very upset about this, because this Muslim group (mostly Spanish converts, funded by the Saudi government) moved into Córdoba specifically with the intention of making it a center for Islam. In addition to getting the Cathedral - which had been a mosque, which in turn was built on a church destroyed by the Moors - they want to build Europe's biggest mosque there. The Socialists (municipal and regional government) are cool with it, although the people of Córdoba are not and I'm not sure what's going to happen.
Spain. having bought into the self-destructive European cultural mush, is allowing a re-reconquista. Ferdinand and Isabel must be spinning, spinning, spinning in their graves (actually, their coffins in Granada). Are the converts also demanding that Spain return the Alhambra to them? The Catholics in Cordoba need to push back, hard. This is what you get when you elect a Socialist government. The other individual who must be spinning in his grave is Franco. (Yes, I know, Franco is still dead. What a pity.)