It’s much easier to get rid of socialists if the voting system is fair

To get rid of socialists we need to be able to choose a liberal (libertarian) candidate from those offered. Unless we can make this choice without our vote being ignored (as it would be with an unfair system) then we are inclined towards voting for the established (socialist) parties, to make our vote count. If voting for libertarians doesn’t count (fptp) then we are left with (voting for) socialists. Unfair voting systems make it difficult (impossible) to get rid of socialists.