This sort of crazy hyperbole is why many people are scared. The UK will be fine. We are members of the top international groups, NATO, G7 etc.

See the trade-deficit of +3 billion bounds every month? Britain is bleeding dry. And now the money won't "stay in the family".

And of course UK will still remain within international groups. But it will no longer be the key entry point for political, commercial and cultural engagement with Europe.

To manage that shift is not going to be easy nor rewarding.

Not a certainty at all, especially if new EU membership involves taking the Euro. There is a reason Sturgeon has not yet called the vote, they know that EU joining terms are likely to be very ugly for Scotland at this time. She first has to convince the EU to give them extremely exceptional rules (or legal challenge so Scotland isn't necessarily leaving then joining).

Your statements are hyperbolic. No one has any clue what is going to happen next. Making these assertions is unhelpful to everyone.

But. If you truly believe in what you are saying, now is the time for you to make yourself millions of pounds in the next few months easily. Plough your savings into the market, take large, leveraged positions against the UK.