Capitalism erases its own foundations, Imperialist countries like the Nordics you use as good examples depend on hyper-exploitation of the Global South. The answer is Socialism, which is an inevitable process because over time Capitalism erases the foundations it stands on and no system is static, it always moves towards the next stages or it dies. Look at businesses, they never maintain static sizes, they either grow or die, or stay small enough to be irrelevant, in aggregate.

There's frankly so many false assumptions here that it would take many well-developed comments to answer them all.