In a sense, as ecu points out, it is both Boudi. You could have a 100% support for independence within Scotland (whether or not this was part of a larger UK-wide referendum), but it would still have to come before the Westminster Parliament. I suspect that Labour would be against it, as a sizeable number of their Parliamentary strength is Scottish (41 at the time of writing this). The Tories will be against it because of their Unionist background. That just leaves a handful of MPs who might vote for it in the H of Cs.