Meaningful Majorities in Referendum

40 years ago a referendum about whether or not to use Nuclear Energy was held in Austria. The power plant was practically ready to go into operation but anti-nuclear activists had backed the government into a corner. As a result it was decided to let the citizens have their say. The result was an extremely narrow majority (50.5%) in favour of not using the finished (!) power plant. This raises the question of what level the qualified majority should be - easy to answer in case of constitutional matters. But not so easy in all other decisions.

Turkey Referendum - Fake Democracy wins (again)

Another narrow result demonstrates the worst aspect of Fake Democracy. That important decisions such as constitutional 'reform' (if you can call it that) can be decided with a margin of less than 2% (measured by the percentage that has to flip to the other side)means that there is insufficient backing. The same could have been said about the British Brexit referendum last year - but with the proviso that all the decisions related to the EU had not been made under rules that would have required a qualified majority (two thirds or maybe even 75%).
Erdogan Wins Constitutional “Reforms”, Allowed to Rule Until 2029: Opposition Challenges Vote | MishTalk