DBWI: Labour a major party

as the board's grubby little Labour cheerleader, I was wondering what POD would be needed so that Labour, instead of only getting 40 or so seats in parliament, could be as big as the Tories or the Whigs?
 
Perhaps a couple of major wars to greatly disrupt the Empire, and kill millions of Britons, a greater British working class that was not largely outsourced to the Empire in the '50s and '60s, and much stronger Imperial Trade Unions. Witness the Indian Labour Party is currently the main Opposition in Congress over there, simply because of India's huge manufacturing industries that provide it with a very large group of working class supporters.
 
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