Sweden is not socialist, parlimentary democracy.
Nationalists however are gaining support as more people complain about the sustainability of the ‘cradle-to-grave system’ for their 10 million people. .......they won’t lower taxes in the coming years, precisely because of the need to finance welfare costs with the influx of immigration.
Socialism is not a form of government. Any form of government can adopt socialism. Socialsm is an economic system.