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.