Just because the idea of F/OSS software is/was relatively radical and a certain type of political act when applied in certain situations, does not mean that it necessarily needs to concern itself with any other political act. After all, all acts are political, right?
To extend your world picture just one more step - for those people whose "existance is political", a F/OSS world that does not concern itself with irrelevant politics provides that very haven where only the merit of ideas is considered.