sure, no problem with that, BUT:
then stop repeating this fake news as well
No scenario whatsoever? Really? They can't make deals with countries they've been legally blocked from doing before? It won't have ANY impact on their finances?
A vastly rich alien species can't choose to enrich the UK due to its newfound independence when they land on this planet? They can't suddenly strike gold / oil / gas deposits?
You can say the probability is low if you wish, but every time you repeat the lie that there is "no scenario" that they can be better off you're just repeating fake news yourself.
They will become free to make trade deals with such powerhouses as South Africa and Angola. Whoop te doo. While trade with the EU becomes significantly more complicated due to Brexit. Still think its a good idea?
Let's put it this way. Businesses such as the banks have whole teams of economists, planners and strategists working for them. Very smart people with PhDs, and their job is to predict what Brexit will mean for those firms and what they should do about it. If any of them thought Brexit would be positive, then they would have stayed in the UK and in fact increased their investment. But a lot of them have left the UK because they think it will be negative.
Think about it - all of these businesses are not going to listen to what the government says. They will do their own research, their own planning, their own forecasting, and a lot of them came to the conclusion that this is the time for them to go.
Now why would they do that if there was the possibility of an upside? Are you saying you know better than these very smart people working for a lot of major banks? All of them?