The plea was made by Eilidh Douglas, vice-chair of Amnesty International UK. Britain had been due to leave the EU on March 29, but this has been delayed twice. Ms Douglas was responding to whether a Brexit Party win in next weeks European Parliament elections would end calls for another EU membership referendum.
She responded: “If the Brexit Party send a clear message in the European Elections then yes it should stop calls for a second referendum, but I don’t think it will.
“I voted to leave the European Union, I thought that as the UK government said in the leaflet that they sent to every single household in this country that they would implement that decision.
“Now they’re coming back to us and saying ‘oh we’ve made a bit of a mess of it so maybe you want to think again.
“I don’t think that in any way respects what 17.4 million people voted for.”
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“I think they knew what they were voting for and I think the politicians just need to get on the implement it.”
The UK will vote in European Parliament elections next Thursday.
A number of polls have suggested the Brexit Party will win, with the Conservatives potentially pushed into third or fourth place.
However the SNP are calling for another public vote on EU membership.
John Swinney, the deputy first minister of Scotland, commented: “I think the Brexit Process has been spectacularly badly handled by the United Kingdom government and we are in a position of real weakness as a consequence.
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“Many many people are concerned in our country about the implications of Brexit, we’ve narrowly avoided a no-deal situation at the end of March.”
Labour’s Scottish leader Richard Leonard argued a no-deal Brexit would be damaging for the UK, whilst the Conservatives’ Bim Afolami said the referendum result must be respected.
Yesterday Theresa May vowed to set out a timetable for her departure as Prime Minister after a fourth Parliamentary vote on her Brexit deal, due to take place in the first week of June.
Former Foreign Secretary Boris Johnson announced his intention to run for the Conservative leadership.