Losing Scotland from the Union will be like losing a gangrenous foot. Sure, we'd rather keep it - but whole and healthy. Once we recognise that the member is diseased beyond salvage, well, take it off. It's only 8% of us.
And if the Yes campaign - led by a racist demagogue whose street thugs remain un-censured as they bully, kick, spit and vandalise their way across Scotland to impose their ugly racist nationalism - has shown anything in the past few weeks, it is that Scotland is gangrenous.
It's become clear that if Scotland votes No, we'll have a violent, petulant little nation with a massive sense of grievance to deal with - which will cost us even more than Scotland does at present. The risk that it will infect the rest of the healthy body is too great. Let's cut it off.
The United Kingdom is much bigger than the craggy, hostile, squabbling bit at the top, and will prosper after a split. And as the Scots gaze across the barbed-wire border in wonder at our wealth, full supermarket shelves, new clothes and cars and sleek prosperity let 'em weep.