significant share who’ll vote Lib Dem or Tory, but not Labour
Citation required for that.
The Liberal Party, which is now the modern LibDems, was founded as opposition to the Tories. Their values are completely different, which is why most LibDem voters were concerned about the coalition.
Labour was founded to represent workers rights, the Greens for the planets rights, and the LibDems for social rights.
The Tories are toxic for all three of those.
As per the initial comment, those that didn’t vote Tory mostly moved to Reform not to LibDem.
Because LibDem wouldn’t make sense, as a pro-trans, pro-EU, pro-increase tax to pay for public services party they don’t offer anything that Tories want.
That was a wishful thinking comment that some Tories might want to not move far-right, those that find the Tories unpalatable due to their shitty views have already moved.
I would suggest that your more likely to find folks who voted LibDem to move to Green now that they’ve rebranded themselves to something other than crusty hippies. I know my mother moved from voting LibDem to Green.