There is never anyone good to vote for because of first past the post

The main two positions will always be dominated by parties which pander to the dogma prevalent at the time. Bigots will not be (cannot be) excluded from holding power. The reason we cannot exclude bigots is first past the post. Only a bigot of one form or another would defend fptp against proportional representation. The outcomes of (unproportional) first past the post elections are not legitimate because they are not proportional. The only legitimate electoral systems are those which give proportional outcomes. There can be no representation (and therefore no fair taxes) without proportionality and so (unproportional and unfair) first past the post is not legitimate. Any government (taxation) derived by first past the post is not legitimate because it is not representative. There can be no (legitimate) taxation without proportionality in the democratic outcome.