Kopecky and Mudde have said that if the demarcation line is the number of and which policies a party opposes, then the question arises of how many must a party oppose and which ones should a party oppose that makes them 'hard' Eurosceptic instead of 'soft'.
Kopecky和Mudde曾說過，如果分界線是一個政黨反對的政策數量和政策，那麼問題就出現了一個政黨必須反對多少以及一個政黨應該反對哪一個使他們“變硬”歐洲懷疑而不是「變軟」。