First past the post causes fair communism

Fptp means the centre-left (cl) party generally do well... but this is fair since the centre-right (cr) party has the opportunity to advocate pr to prevent this. Pr would prevent the dominance of the cl party which establishes itself under fptp. For the cl party fptp is not a threat at all to their progress in fact it is the aspect of the voting system they rely on to do well... without fptp the cl would lose and there would be no communism.