Dictum of the day, or democracy's anticipatory self-defence

In the Court’s view, the State is entitled to take preventive measures to protect democracy vis-à-vis such non-party entities as well, if a sufficiently imminent prejudice to the rights of others undermines the fundamental values upon which a democratic society rests and functions. One of such values is the cohabitation of members of society without racial segregation, without which a democratic society is inconceivable. The State cannot be required to wait, before intervening, until a political movement takes action to undermine democracy or has recourse to violence. Even if that movement has not made an attempt to seize power and the danger of its policy to democracy is not sufficiently imminent, the State is entitled to act preventively, if it is established that such a movement has started to take concrete steps in public life to implement a policy incompatible with the standards of the Convention and democracy

Vona v. Hungary, ECHR, app. no. 35943/10, 09.07.2013., para. 57.