FPTP has not served us, or anybody else, well "for 150 years".
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People have ben campaigning for its abolition since before WWI.
The majority of countries that eve had FPTP ha abolished it.
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No country that ha abolished FPTP ha eve gone back to it.
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Face facts: FPTP is a lousy electoral system that often produces undemocratic results.  That is why many countries have abolished it.