That's correct; I went to at least one of those meetings. I live in Loughborough Junction too.
I do not agree with
Gramsci's view that a majority of residents were against the scheme. Whether we're talking about the whole of the area involved, or just the residents of Loughborough Estate. It can't be proven either way, but there is no evidence that a majority were against.
Gramsci has become focussed on this as a class issue but while I don't think this part of the picture should be ignored, I think it has become over-emphasised.
At the time of the LJ closures, I remember saying that if they had been implemented on the "middle class" side of LJ - that is, say Milkwood Rd and/or Herne Hill Road had been blocked, instead of Loughborough Rd (with the same aim of reducing the north/south through-traffic in the area) then the complaint would have been that the residents on those roads were benefitting, with residents on the Loughborough estate being ignored. To some extent that is what we are now seeing with the LN proposal - complaints that there is too much emphasis on central brixton. You can find a class-based argument to oppose a scheme that includes the Loughborough estate area and you can find one that opposes a scheme that excludes it. You can't win - unless you're the car lobby.
Gramsci I don't disagree with everything you say on this but I do think you are being a bit "awkward squad". There's never going to be a perfect solution or scheme. You know that any attempts to improve things for pedestrians and cyclists always come up against a whole load of opposition. It's frustrating when even those who have previously demonstrated that they strongly support the principles, are adding to the obstacles to things ever changing.