Fptp makes it easier for governments to form

There is no legitimate (political) power without proportionality. If the government seeks to form without a proportional mandate it is doing so without adequate consent. To have power requires that the governing coalition must get at least half of the vote. If this is not achieved (as is usually the case when using fptp) then it has no mandate. And this applies to the individual constituencies as well. To not get half of the vote is to not get a mandate. Without proportionality the government has no right to form and there is no (legitimate) government. There is no reason not to have pr because if a government does not get enough votes to win under pr but it does get enough to win with fptp then it is forming a government without (true) consent. If it is only because of the unfair voting system that a government gets elected it has no mandate and so there is no reason not to use pr. All elections for government should be proportional. There is no good reason to have fptp. There is no government which is not elected proportionally. It is not a case of fptp governments not being legitimate because to be legitimate they must first be a government which they are not when using fptp. (There are no fptp governments.) If we want a government we can only use pr... fptp is not a valid system.