Because it would be lying. I’m still waiting for that list of ’10 Positive Things (for Britain) that have resulted from Brexit’ – beyond being covered in fairy dust and knee-deep in unicorn-sh*te.
Meanwhile. back in the Real World we actually have to live in, UK Financial Services have lost half a trillion pounds since the Referendum. Half a trillion pounds. We also expect to lose another £1.2 trillion of future Trade.