The problem is that this is a short term solution. If you want socialist representation then you need Proportional Representation, which was the reason that the SSP had 6 seats in Scotland (until they tore themselves to bits).
And which party gets 50% of the vote? Labour and the Conservatives are quite happy with getting 30 to 40% if it is the right 30 to 40% that gives them a FPTP majority.
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