No you don't! Boris was misleading. Jo Cox was killed by a nut who does not represent Brexit. Mateen does not represent Hillary supporters because he was a Hillary supporter.Don't you mean 'because of'?
The government does not have the duty to encourage and if the government, that wishes the status quo to prevail, then a sufficiently high threshold could place a very unfair burden on the side looking for change. This is a dangerous precedent.I suspect it would encourage more people to turn out on important matters, but the key thing is that the terms are set BEFORE the vote.
And yes, it is ridiculous. The constitution is not voluntary. It can be changed, but its application can not be opted out of (unless maybe you live in a no go zone and Sharia law prevails) Membership in a club or a union is (yes, even a union-you can choose what you do for a living).
Let's stop going off on tangents.
We are coming at this momentous event from very different points of view. Some posts ago I think you said that your fiancee was reconsidering living in Britain based on the potential tightening of its immigration policy. Did I understand this correctly? If Brexit stands and the UK establishes immigration laws that are restrictive what would be the downside from her point of view?