Anniebach, Momentum with the help of others grew out of the grassroots of the Trade Union Branch structure. Those Trade Union Branch activists that supported those initial changes that brought forward the present Labour party and its policies did so because twelve years of Labour government under Blair and Brown had not repealed even one sector of the five anti-trade union bills that had passed through parliament under the Thatcher and Major Tory governments.
Blair and Brown were content to see the Trades Unions pay the vast majority of the Labour party bills throughout their years in office, but never once gave those bodies anything in return, with Blair not even once attending any of their conferences.
You reap what you sow, and in that, you have today's Labour party.
How is your hand-writing these days?