Co-leader Patrick Harvie came under fire from a furious John Humphrys who slated the politician for attempting to snap the 300-year-old union “at a pique”.
Holyrood will complete its two-day debate on whether to give Nicola Sturgeon the power to ask Westminster for a fresh vote on Wednesday.
Despite not having an overall majority, the SNP has won the support of the Scottish Greens, who argue Scots should not have an “extreme hard Brexiteer agenda” forced upon them.
Speaking on Radio 4 ahead of the vote, Mr Harvie claimed: “It’s out of a commitment to ensure the future of Scotland is in the hands of the people who live here.
John Humphrys tore into Patrick Harvie over the party's backing of the SNP independence
But you’re simply not recognising democracy are you?
“Over the next 18 months, what is going to happen is a UK Government, that Scotland didn’t choose, will be negotiating with EU institutions which no longer represent Scotland about a Brexit deal we didn’t vote for.
“Every other EU member state will have a chance to ratify the deal which comes out of that process, effectively, the only people in the whole of Europe who will be voiceless in this critical decision about the future of Scotland are the people who live here.”
His argument left host Humphrys seething, who began to rip Mr Harvie’s comments to shreds.
“Tell me what the people of London should do,” Humphrys retorted. “They were desperately keen to stay in Europe, they’re now being dragged out of Europe against their will, what should they do?”
Holyrood will continue a two-day debate on independence on Wednesday
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The MSP responded: “I have huge empathy for the people in other parts of these islands who voted Remain, my Green Party colleagues are working hard to represent them there.”
Appearing to sound more frustrated, Humphrys fumed: “But you’re simply not recognising democracy, are you? Isn’t your job as a leader to respect democracy?
“If a majority of people in a given constituency whether it’s Scotland or the United Kingdom vote in a particular way, you’ve got to go with it whether you like it or not.”
Mr Harvie finished: “Yes and the different parts of the UK have voted in different directions, the point is if there was any willingness on the part of the UK Government where it can negotiate some kind of compromise deal, I don’t think we’d be where we are now.”
Nicola Sturgeon's most outrageous quotes Mon, March 13, 2017
The nationalist chief always has plenty to say
1 of 10
'Men – the colour of their tie is the most difficult decision they have to make every day'
The Scottish Greens’ support is likely to be enough for the government to win Wednesday’s vote – despite opposition from the Conservatives, Labour and Liberal Democrats.
The First Minister wants a vote on independence to be held in the autumn of next year, or the spring of 2019.
Westminster has already signalled it will not allow a section 30 order, which is needed to make a referendum legally binding, until after the UK leaves the EU.