BBC is always negative about Brexit. They are very biassed.
Only because of their ludicrous insistence that they actually consider the facts rather than lies and propaganda - but I can see how that comes across as being negative about Brexit
The Chancellor also said that Britain will still have one of the fastest growing economies in the world - on a par with Germany but much faster than most other European countries such as France or Italy.
...and ?
The UK economy will be in a far worse position than it would have been had the Brexit vote not gone the way it did.