Their movement will be more successful purely because it will be truly democratic from the start; a member led party (see info from today). They already have 140,000 members in only 10 hours of opening. Corbyn owes the Greens NOTHING after they stabbed him in the back when he was LOTO.
Greens are member lead, always have been. They have a proven track record of managing a large council and have an increasing number of councillors. Another party means a more split vote which under our system means Deform could easily take power. Unity is needed.
What happened? PS how is the Green Party not democratic - actually seeking to understand, not being facetious.