I would say that social democracy is better at distributing the superprofits from imperialism among its citizens. I'm even somewhat cynical about it, and believe Norwegians have a legitimate interest in opposing international socialism because they benefit more from imperialism than they would if they were forced into equality with the rest of the world (at least until international socialism uplifted the rest of the world)

I also don't think it is sustainable. Blowback is inevitable.