"Yes, “within the Centre and the Party of freethinkers [the Liberal Party] there are undoubtedly elements who are interested in universal and equal suffrage”, said Vorwärts. But it is not these elements that lead the bourgeois parties, not the petty artisans, not the semi-proletariat, not the semi-ruined peasants. They follow the lead of the liberal bourgeois, who try to keep them away from the struggle by making compromises with reaction behind their backs, by corrupting their class-consciousness and not really defending their interests.
To draw these elements into the struggle for universal suffrage it is necessary to arouse their class-consciousness, to win them away from the vacillating bourgeois parties. “Within the Liberal [freethinking] Party they, the elements interested in universal suffrage, form an impotent minority, which is forever being fed with promises and then always duped once again, and whose political energy is completely paralysed. If, however, the freethinkers and the Centre are really to be forced to make concessions to democracy owing to the threat of losing votes, then it is the class struggle, which weakens the bourgeois parties, that is the only means of pushing the reluctant bourgeoisie to the Left.”
For the political facts long ago proved that reaction is less hateful to the freethinkers than Social-Democracy. “We must therefore not only ruthlessly castigate the sins of all the bourgeois parties, but above all make it clear that the betrayals of the freethinkers and the Centre on the question of the franchise are a necessary consequence of the class character of these parties.”."
http://marxists.org/archive/lenin/works/1908/mar/12b.htm
Digest that.
Big picture...the sheep are led...