peregrina I would like to see such a party too, or at least a temporary grouping in Parliament to stop an Uktra Brecit.
However, there are also significant minorities on the hard left and hard right who regard even the govts from Major through to Cameron as the LabLibTory monopoly on power, which has always excluded them.
- a left or right monopoly, depending on who is whingeing.
This is part of why Brexiters are so angry and aggressive - they feel this is their only shot at power.
PR replacing FPTP would both let the extremes have their place
and reduce the risk that they could take over the main 2 parties, as they seem to be achieving now
This is why many hard-liners don't want PR - they want their chance at winning a GE outright, via infiltration of a moderate party whose voters are likely to remain, from habit & tribalism.
One aspect that we need to handle better:
some of the poorest, who are habitual non-voters, but who voted in the EU referendum in anger, just as their one chance to kick at the comfortable middle class
Unfortunately, this anger, rarely gets diverted towards the ruling class, only to the mc figures they come into contact with, ruling their lives.
This anger has been cynically coopted by the hard-tight Brexiters, including some ubiquitous MN posters, with much aggression posted with the theme of "Guardian reading mc trying to dominate the wc"