Does it not occur to you that in a democracy, which you claim that you hold important, it is still allowed to critque, to disset and to oppose?
The UK does think it needs to pay, and has already offered a sum, it will be negotiated.
If the UK does not pay, then there may be challenges to WTO membership as the EU has a veto ( as does Argentina and 20 other countries that the UK held up membership for).
Simple enough for you MENSA?
But what will really happen is:
ThThe UK will pay a sum of money.
The UK will continue to pay money for access to markets.
The UK will replicate all EU legislation in order to continue to have access to markets.
The UK will implement all regulations in order to keep exporting to the EU.
The UK will replicate deals that it already has with other countries.
FOM will continue in some form.
Brexit will be in name only, and only to convince MENSA members like you that it has happened.