An inconvenient truth for the leftards.
"The Labour Party initially proposed the idea of the right of tenants to own the house they live in, in its manifesto for the 1959 General Election ...

Why? An idea is good or bad in its own right. It doesn't bother me one way or the other where the original idea came from.

Now it is true that any policy is also made better or worse depending on its surrounding context, so you would have to see where it fitted into the manifesto and the financial situation at the time, as that all modifies its effects, but if you think it was a bad one, it matters not a jot who came up with it.

I don't believe there are many Labour voters or Conservative voters or Liberals or Grens who agree with 100% of the policies of whoever they voted for.