Assuming these numbers are vaguely accurate, I'm struggling to see a logical pattern. Perhaps Reform had already cannibalised a large proportion of Tory membership, or Tories are doubling up membership with reform? The green surge seems easier to explain, again perhaps overlapping membership with Labour? A longer term graph would hopefully show more but I'm coming up empty
Thoughts @ChrisMayLA6@zirk.us has moved (npub12pw…zvxn)?
https://www.pollcheck.co.uk/party-memberships