That's more or less my argument in the EU - it's something federal USA has stopped noticing but it's clear in Europe.
You can become leader of Hungary by wrapping yourself in the patriotic history of the mid-European medieval struggles - struggles that carry cultural weight in the countries that bore the brunt of the middle ages. But talking about medieval knightly charges just gets a laugh in Sweden whose cultural resonance is more gunpowder and forest rights.
Any pan-European agreements need to be appealing to commonly held incentives - those almost always look like "greater common wealth, growth, consumer protection"
The Federal US has a similar setup and I think can be found at root of many of the wedge issues troubling the US
You can become leader of Hungary by wrapping yourself in the patriotic history of the mid-European medieval struggles - struggles that carry cultural weight in the countries that bore the brunt of the middle ages. But talking about medieval knightly charges just gets a laugh in Sweden whose cultural resonance is more gunpowder and forest rights.
Any pan-European agreements need to be appealing to commonly held incentives - those almost always look like "greater common wealth, growth, consumer protection"
The Federal US has a similar setup and I think can be found at root of many of the wedge issues troubling the US