In the case of Galician, one of the first to write in the Galician language was Alfonso X, the Castilian king, so there’s that to using languages as a political tool.
Having said that, the push for normalization of the Basque has mad some Basques angry because they don’t speak “standard” Basque.
But Catalan nationalists are even trying to remove all Spanish from the education [1][2] even by disobeying court sentences.
If you compare the situation between Catalan and Galicia. You can see it clearly. Galician is not used by most people nor politicians as a political tool. Catalan is sadly being used as such.
[1] https://www.elperiodico.com/es/sociedad/20211123/sentencia-2...
[2] https://www.europapress.es/nacional/noticia-parlament-catala...
Certainly, Catalan is used as a political tool, but it's a little hypocritical to think that Spanish is not. We all know how political questions should be solved in a democracy.
Having said that, Catalan and Basque have been used as a political tool for decades, much less the Galician, and not the Andalusian dialects of Spanish.
Hope this comment clarifies what I’m trying to say.