I agree in full with what Yankee said. The federalist party does have structural disadvantages but a coalition of moderate, conservative and libertarians should be enough to get you at 45% and win sometimes presidential elections.
If you do not fix your problems, Labor party will soon collapse too and the game will die.
Or you could get a game mostly between two leftist parties, or perhaps a leftist party and a centrist party, while the right wins a house or reg leg seat here and there but nothing else. If the 'right' is simply not suitable for the registration of the forum, the game may very well evolve to suit that reality. Remember, the Labor Party dates back to 2012, but the game itself dates back to 2004. The presence of the Labor and Federalist Parties is not essential to the life of the game.