The whole western economy runs on cheap labour and resource extraction from the colonized countries
A great deal of the western economy runs on cheap imports from industrial rivals, like China and India. But Chinese standard of living has been improving by leaps and bounds, approaching (and in cases exceeding) their western peers. I don't think it is fair or accurate to say that a Nordish person working in the O&G sector and using an Apple phone is somehow profiting off the back of Chinese labor any more than a Chinese person using a fossil-fuel powered device while working in a phone assembly plant is profiting off Nordic extracted labor.
Scandinavian social democracy only seems to work because of the imperialism they practice on third world countries
The articles you're citing largely focus on the weapons export industry, the knock-on-effects of fossil fuels, and the relationship between economies as a whole. They fail to discuss either the scope or benefit afforded to individual Scandinavians, relative to the handful of senior executives and majority stakeholders in these industries.
To say the US democratic model or the Middle Eastern monarchy model are predicated on imperialism would be far more accurate. But, again, the flow of trade is heavily biased towards a minority of residents. The real benefit of Scandinavian socialism isn't that it grants access to cheap consumer goods. You can get that anywhere - from Qatar to Haiti to Taiwan - without any regard to the social system. The benefit of the Scandinavian model is in how it delivers professional health care and education labor. That's the primary appeal of the system and it has nothing to do with cheap foreign imports.
Success of social democracy is not possible without inflicting inhumane suffering and oppression upon people in the global south
Success of social democracy is not predicated on the success of a consumerist market economy. Cuba is an excellent counterexample. It implements a raft of policies that are comparable to Scandinavian social services and reaps enormous economic benefits despite being entirely cut off from imperialist trade and cheap labor.
The real benefits of the consumer economy are the capitalist brokers, not the Scandinavian social democrats.
Undeniably. But the benefit of this exploitation accrues first and foremost to the ownership class.
US cut-outs in Scandinavia function in much the same way as the 50-state strategy for the domestic arms industry. This secures political patronage by way of kickbacks and sinesures to elites within the Scandinavian domestic polity. But it does not benefit Scandinavians writ large. The beneficiaries are entirely within the foreign rooted patronage network and have contracted over time as the network grows more efficient.
The economic benefits of Scandinavian socialism are geographically and linguistically limited. Traveling overseas for medical care and education is a luxury, particularly when your conditions are chronic or time-critical. And the labor for these services is primarily sourced from the Scandinavian polity. They're not importing a bunch of Global South doctors and teachers to get the cost of their socialized programs down.
The labor needed to make the Scandinavian Treats Network flow is a consequence of colonialism. But Treats trade through the privatized economy. There is no publicly financed cheap TVs, cars, and textiles service. And the benefits of these industries accrue primarily to the bourgeois not the proletariat. That is why they're the focus of intensive advertising and other consumerist propaganda. Nobody in Scandinavia needs to spend millions during the local soccer tournament to promote the public mail service or the local judiciary in order to garner support for it. Its the newest FIFA title and scammy financial products and the fanciest luxury watch brands and clothing styles that get the lion's share of promotion. None of those are consequences of Democratic Socialism.
Cuba isn't "principled", its "embargoed". Cubans would be more than happy to get the Scandinavian tier of treats if they were on offer.
But my point is that Cuba can still deliver public services despite being cut off from treats networks. These are distinct systems of trade.