Proportional representation is logical

If the government is not good for the people as a whole then it is not good at all and there should instead be anarchy. The government is useful only if it is helpful to the people and there are arguments to say that government helps to define property rights and prevent crime. But if something is good for the people then there is no reason for it not to be democratic. If non-democracy (fptp) is helpful to the government then the government is acting against the wishes of the people which is evil (since the government must be good to be valid). Non-democracy is never helpful to a good government and it makes no sense for the government not to be good... so then non-democracy makes no sense and is illogical. Democracy is logical because if the government is good it will not seek to oppress the people with non-democracy and if the government is not good we should have no government (which might be thought of as an extreme form of democracy). There is no rational reason to defend the first-past-the-post system.