I don't know, calling this "brexit" when it's not even happening is ridiculous. The are a couple of issues here. One, the pound has been overvalued for quite a while now, the uncertainty brought about recently has only sought to restore the pound to a more accurate valuation (although some economists feel that the valuation is higher than it should be still).
Unfortunately, the issue with uncertainty isn't brexit, but the result of politicians that aren't actually acting. The government is not doing a good job at showing certainty, article 50 hasn't even been executed by our government, so we and everyone else don't even know if we're even really leaving the EU or not. Brexit is simply leaving the EU and there is no progress since the elections, we're just stuck in limbo while politicians do anything but act. At this point, our politicians need to either start acting and declare we're staying in the EU or leaving, otherwise we're just going to ruin ourselves by staying in this stupid limbo.