Larger British unions were the most conservative, tempering militancy

Evidence

Indeed the size of this army of workmen was perhaps the best security that the unions would pursue a prudent policy. In a highly civilized country there are not a million or a million and a half revolutionaries; and of the British unions, about the year 1895, the most conservative and cautious were precisely those whose membership included the largest proportion of the men employed in the trade. — Cedric J. Robinson, Black Marxism_ The Making of the Black…, 1213