Presumably different referenda would be put to a vote if a supermajority were required, namely, ones that are less controversial.
Re:People Aren’t Dumb, the World Is Hard
by RugnirViking on Friday July 13, 2018 @03:44AM
(#17521173)
To be fair in some situations where it is not internal political pressure that caused the vote in the first place, large majorities can occur; see the falkland islands referendum on joining argentina
When was the last time someone got a supermajority with more than a small number of voters?