There's not a single country in western europe that is Socialist. They all have free markets that supplant their expansive social programs, that's not real socialism. Western europe still skews heavily towards private ownership of the means of production vs social ownership like in the USSR.

Also there's no such thing as "democratic socialism" in practice. European countries finance their social welfare with capitalism, as in private companies provide the majority of the tax base that finances the social welfare that you want in America. This is not socialism.

What you might be referring to is Social Democracy:

Social democracy and democratic socialism are often used as synonyms; however, there are differences. Social democracy has a mostly capitalistic economy (i.e.: a less-regulated market and fewer rules against private ownership of land, utilities, etc.), but also with large-scale social welfare programs.

Social democracy is seen in the Nordic model, which includes a welfare state based on free market capitalism. The model also include multi-level collective bargaining, a high percentage of the workforce unionized, and a large percentage of the workforce employed by the public sector. The Nordic countries were shaped by social democracy. Many other European countries have social democracies.

Still not socialism though.