100% on a public fund? So I should be paying for the elections of Republicans and Democrats even though they are private parties that may for no reason exclude me?
It's done this way in many other countries. For example, in Canada, each party receives $2 per vote received in the last election to campaign in the next election. Corporate donations are banned, although small donations by individuals are still allowed.
You're paying now through the distortion of the electoral process and the indirect increase in your cost of goods and services (the hundreds of billions spent on elections comes from somewhere). Don't you think it's worth it for your taxes to go up $2 to eliminate those costs?