You seem to cite Wikipedia as your favorite source. How about opening articles on capitalism and socialism before you go any further?

This should help you get up to speed before you accuse me and all others of making stuff up.

Generations of socialists have been critical of social democracy. Generations of capitalists have been saying that social democracy is the closest we will ever get to socialism. So who should I believe, the western consensus of capitalist academia, beholden to big money donors for research grants, or the most brilliant, brave and capable intellectuals of the past 200 years, such as Marx, Engels, Luxemburg, DuBois, Lenin and (for a bit of Nordic flair) Pannekoek?

Because what is the Nordic model really? A huge part of the Nordic economy is defense contractors, which means your social democracy is paid for with mass death, imperialism and immiseration. Also, as a member of the western hegemon, Nordic countries enjoy the fruits of neocolonial exploitation of Africa, Asia, South America, etc., not very socialistic to prop up a class of war mongering rich, even if they pay marginally higher taxes than elsewhere.

This debate has existed for a long time, but to socialists it is settled. The Wikipedia entry for the Gotha program of 1875 calls it "explicitly socialist." And even by today's standards, it was and would be fairly progressive; calling for workers rights, universal sufferage, etc., but to many of the members of the first socialist international it was controversial because it relied on an upper class of politicians and business men to administer the social reforms. Karl Marx wrote his "Critique of the Gotha Program" tearing apart every point of the short document as another form of class rule, and even created some problems for his socially a connected partner Friedrich Engels by calling Ferdinand Lasalle, a popular reformer, politician and architect of the Gotha program, "a petty dictator in waiting." He could not have known that Lasalle was in fact conspiring with von Bismarck to enact a plan of social democracy that would serve as a cover for a new regime of class domination that would undercut the socialist movement with moderate reforms, while making the working class beholden to the political/economic upper class.

These reforms can be taken away over time, which we are seeing in European social democracies over the last 40 years; leaving only the naked coercive competitive drive of capitalism to govern all social relations.

And like, I'm an American, my country is the imperial epicenter for neocolonialism imperialist expansion, bourgeois decadence, exploitation and immiseration (for now.) My experiences with people from Nordic countries who I have met have been overwhelmingly positive. Your social democracies are superior to our laissez faire capitalism, they make more sense, are more stable and less subject to natural instability cycles inherent to the system. Nothing is cut-and-dry, there are blended forms of political and economic organization, just like there are blended classes, and new forms are always emerging as history marches. If you want to believe that your social democracies are an island within capitalism, that's mostly true! But to a socialist, it is not socialism. Quoting a Wikipedia article at us when most of us are acutely aware of how it is used by businesses and governments to shape our remembrance of history and the ideas with which we use to shape the world, comes off as incredibly weak and unconvincing, especially when so many of us spend years studying independently, having discussions and organizing our communities. You can quote wikipedia but it will never convince a socialist. I hope you become more mindful of where you are getting your information and whom that particular interpretation of facts serves. Spoiler alert! Its the owners of private property, the means of production, which have always shaped history and defined the classes and antagonisms inherent to them.