The emergence of an anti-SNP coalition has seen voters flock to the Scottish Tories, as the best bet to keep the United Kingdom together.
In a segment on BBC's Newsnight, voters in the marginal seat of East Renfrewshire said that this election was about "sending a message to the SNP".
The issue of independence remains high on the agenda, with nine out of 10 of those who voted No picking the three unionist parties.
The majority – 49 per cent – are voting for the Tories; 27 per cent for Labour and 10 per cent for the Liberal Democrats.
Sandy Cooper (centre) admits he may switch to Tories this time around
Canning admitted that he might vote Conservative this time
Nicola Sturgeon has tried to manipulate the Brexit vote, where 62 per cent of Scots voted to remain in the EU, into pushing for the need for a second independence referendum.
This tactic has infuriated voters in Scotland, who want to send the nationalist party a message on June 8.
Professor John Curtice said: "It looks as if the nationalist pro-Brexiters may have defected from the party.
"The SNP may have lost the support of some of its more Eurosceptic voters, in some cases perhaps to the Conservatives."
Gordon Canning, a retired consultant who has voted Labour all his life, said: "Many people in Scotland do not want independence.
"It's unfair of Sturgeon to make Brexit into an independence vote."
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The issue of independence remains high on the agenda
Bozena Bienkowska will vote primarily to keep the union alive
The SNP may have lost the support of some of its more Eurosceptic voters
Professor John Curtice
Mr Canning admitted that he might vote Conservative this time.
He added: "I want the SNP to be aware that there are a large number of people in Scotland that do not want independence."
Sandy Cooper, who is thinking of switching to the Conservatives, told reporter Katie Razzall: "It's a battle between nationalists and unionists.
"I used to vote Lib Dem – but not this time. I will vote tactically for the Tories – to keep the SNP out."
Bozena Bienkowska, who will vote primarily to keep the union alive, said she knew people who moved to England after the referendum to escape the hostilities of SNP voters.
She added: "I am desperate to stay in the UK. It would break my heart for us to leave the union."