"The Unionist vote is now polarising. This is an automatic response to last year’s nationalist swing during the Westminster election when the SNP won all but 3 of Scotland’s MP seats in the House of Commons," Gordon Wilson said.
The Tory success came in spite of Prime Minister David Cameron decision not to campaign north of the England-Scotland border.
"The Tory brand is still toxic in Scotland, which is why David Cameron was clearly told to stay away from the campaign," SNP spokeswoman Ann-Marie Parry told Sputnik.
In 2014, Scottish voters rejected a motion to break away from the United Kingdom by 55 percent to 45 percent.
The Scottish parliament has devolved powers over health, education, justice, transport and a number of other domestic policy areas, but defense, foreign affairs and macro-economic policy remain under the control of the UK parliament in London.
