The other thing to say about No Deal is that it resolves nothing: eventually people will have to face the fact that you can't not have a negotiated trading and security relationship with our nearest neighbours, so even for advocates of No Deal, the option exists as a means to an end. But it's only a threat to the EU if you accept that the option is damaging, and that's damage that people cannot ignore and shouldn't wish upon themselves or on anybody else.
No Deal is, at best, the equivalent of nuclear weapons, whose very purpose is never to be used but always to be just minutes away from being used if needed. It's meant to be a threat, to force a better deal. That threat has failed so far, and will only succeed in as much as it makes 31st October only a temporary deadline, if nothing else can be agreed by then. But when Nuclear Weapons fail to deter you still don't fire them, because everybody knows that doing so just sees everybody ruined.
No Deal will not happen, and it is not even remotely honourable. It's a scandal, and a failure of Brexit supporters, that what should have been only an extreme hypothetical outcome of all this has now become, for some, the only desirable result.