Supernational socialism vs. national socialism

An article I read recently described polarization in Europe over the EU in terms of clothing: suits with ties vs. sweatshirts with the names of nations on them. But what do these two symbolic outfits signify?

Imo, the message is that Europeans are given two choices (similar to US Americans currently) between large-scale economic (supernational/global) socialism and smaller-scale (national) socialism where borders are reinforced for the benefit of national citizens to protect and strengthen their economic positions.

The question is why isn't there a non-socialist choice where things like border control and trade restrictions are done not for the sake of protecting and growing national economies, but purely because fiscal conservatism and economic/environmental conservation is better than growth and trade/commerce for its own sake?

Surely some people are simultaneously offended by both national socialism and super-national socialism? Or does everyone fall into one of those two camps?