One — there is a sizeable chunk of the
Labour vote who are
brand loyalists, in the event of a split they would keep on voting for
Labour, regardless of whether the left has split away or the right has split away.
28 % of current
Labour voters are
brand loyalists — they would back the continuing
Labour party after a split, regardless of whether it was the anti-Corbyn or pro-Corbyn MPs left in control.