If a progressive alliance won a majority it would introduce proportional representation, allowing progressive parties to in future stand against each other without letting the Tories win. Only then would we have a fully democratic system. That juncture, rather than now, would be the moment for Labour to dissolve itself into fully separate parties.
The party system is in turmoil. And not just after Brexit - although the house of cards now appears to be finally falling down after looking unsteady for some time. It's always risky to pose hypotheticals, but we have to ask ourselves this: would the Labour Party be in its current situation if we had a proportional system...
Currently, the EU provides billions in funding for our Higher Education institutions; gives vital support to Further Education; enables young people to live and study across the continent; and creates jobs and training opportunities. Brexit does not need to mean the end for youth opportunity, but there is a great deal of work to be done to ensure that our futures are not damaged by it.
In the event of a 'Leave' vote, Britain would be divided, with a new Prime Minister, a surge in political awareness, and big questions to be answered about our future out of the EU. The only way for the country to move on from this divisive referendum, and grant democratic legitimacy to those negotiating Brexit, would be to hold a proportional general election as soon as possible after the result.
If you were following it, it was easy to get lost last week underneath the bar charts and rapid analysis of Thursday's elections - the 'winners and losers', the ups and downs. Because there were some very revealing signs of the longer term trends affecting political behaviour and future shape of the UK - and they need to be talked about.
This Wednesday, the Chancellor will present his budget for the year ahead. But it's not the only important thing happening that day: though it might not dominate the headlines, the government's controversial Trade Union Bill will reach its final stages in the House of Lords. What it represents is a last chance for the government to reconsider its position to ban unions from allowing members to vote online - a ban that no other civil society group faces.
The arguments for a political system that's genuinely democratic, that produces a government reflecting the will of the people that encourages a more constructive, effective politics are overwhelmingly strong. Britain needs to do this. It needs to do it soon. That requires parties, campaigners - the people - to get together and demand the change. Today's one step in that process.
'Constitutional chaos' - that's the PM's verdict if Lords go ahead and vote against the government's changes to tax credits today. There are hints from the PM that he is threatening to stuff the House of Lords with 100 extra Conservative Peers if the upper chamber goes against Ministers' wishes and opposes the cuts.