How does attacking Nicola Sturgeon help the cause of independence?

Source::
The National
How does attacking Nicola Sturgeon help the cause of independence?

GOING by a large number of letters printed in The National recently, there would seem to be a concerted and probably a coordinated letter-writing campaign to remove Nicola Sturgeon from office, based on a belief that she and the SNP are not moving fast enough or doing enough to advance the cause of Scottish independence.

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The National
How does attacking Nicola Sturgeon help the cause of independence?