Libertarian (anarchist) support for fptp is illogical

First past the post elections are collectivist so any party which supports this system can be said to be socialist. In a fptp system even the party of the centre-right is socialist because of its support for the fptp system... we assume both parties are against pr. Then both parties in a fptp are socialist. Even if the policies of the centre-right party are otherwise liberal the only policy which matters (as far as this party is concerned) is which voting system they support. If the party of the centre-right supports fptp then socialism is inevitable and the rest of their manifesto is redundant. If the party of the centre-right are opposed to electoral reform (in a fptp system) then socialism is inevitable... and both of the main parties support socialism. Labour rely on the support of the Tories for fptp... without Tory support for fptp Labour would rarely get into power. Tory support for fptp causes Labour to be popular. Labour needs the Tories but the Tories do not need Labour... the Tories keep Labour (and socialism) alive. Socialism requires fptp. Without fptp there would be no socialism.