Euroscepticism, also known as EU-Scepticism, is opposition or scepticism to the European Union. The ideology is split into two categories: Soft-Euroscepticism and Hard-Euroscepticism.
Soft-Euroscepticism seeks to reform certain institutions and policies of the European Union while Hard-Euroscepticism sees the EU as irreformable and seeks outright exemption from it.
Euroskepticism is commonly a 
populist cause with support from both 
Left-Wing and 
Right-Wing Populist groups.
Left-Wing Euroscepticists commonly oppose the EU for reasons relating to privatization and austerity while Right-Wing Euroscepticists commonly oppose the EU for reasons relating to sovereignty and immigration.
Relationships
Friends
Separatism - [Insert country] Exit !
Left-Wing Populism - Opposes the EU because of austerity, BASED!
Right-Wing Populism - Opposes the EU because of Immigration, also BASED!
Korwinism - My Polish friend.
Orbanism - My Hungarian friend.
Klausism - Based.
Golden Dawnism - You take things a bit serious, but otherwise, you are good.
Nationalism - My nation's sovereignty and independence must be preserved.
Faragism - My hero.
Putinism - Good job oppossing the degenerate EU, also my main sponsor.
Gaullism - You were right about the risks of a federalist Europe! Also, Pasqua and Séguin were based.
Post-Rojtavs - My Finnish friend, who opposes the EU, due to the fact that she hates the fact that the EU lets a lot of illegal immigrants into Europe, where people from Asia and Africa often violate and skip visa checks, she considers the economic policy unfair, she wishes her country to get its currency back. Finally, she's based asf!
Frenemies
Corbynism - So do you oppose the EU or not?
Salvinism - Same as above. You used to be way more based in the past
Alter-Globalism - A lot of my leftist variants get along with you, but many others are not really fond with you.
Nazism - THE EU IS LITERALLY THE FOURTH REICH!!! But a lot of far-right groups in Europe also hate the current European Union.
Anti-Authoritarianism - The European Union is a corrupt, oppressive bureaucracy! Please ignore all the Authoritarian Eurosceptic politcians such as Orban and Putin.
Grexit - You were on the verge of greatness, you were this close!
Enemies
European Federalism - FUCK YOU! Fick dich! Майната ти! Jebi Se! Thrni Se! Fuck Dig! Persse! Va Te Faire Foutre! Haista Vittu! Να πας να γαμηθείς! Baszódj Meg! Til Fjandans Með þig! Bíodh An Diabhal Agat! Vaffanculo! Pie Velna Tevi! Mur ħudu f'sormok! Faen Ta Deg! Pieprzyć Cię! Vai-Te Foder! Du-Te Dracului! ¡Vete A La Mierda! Dra åt Helvete! xvi pedicabo! Jdi do prdele!
Eurocommunism (right-wingers) - What the EU is slowly turning into.- Eurocommunism (left-wingers) - Fake socialist who shills for neoliberals.
Further Info
Wikipedia
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