Right, nationalist, populist - signifying the follows does not stop the cause
The cause of the EU problems is itself and the fact that it demonstrates little ability to change things for people. It might be a certain group that complain but the evidence of change for the youth is in this link https://www.weforum.org/agenda/2016/12/europe-political-milestones-austria-italy-far-right the evidence of it solving work, cost, social and competitive problems is no where to be seen.
Accountability and transparency along with the moral hazard of elected govt is the only way to solve the problem, not building a cosy wall around a captive market. In the long term it will just fester in a cage.
Its good to signify things differently as too many others chose their signifiers with good intent but with poor outcomes!