A two party system is cheaper to buy. We get the illusion of choice. 3 or more parties become expensive soon. Media owners realize this when they back a party or two... so they keep it simple and cheap. Our attention spans are so atrophied that we see what we are shown... nothing more.
the other parties dont make them selv's known so much so there 4 there not ging to get a lot of people so notice themWould you consider them 'disenfranchised' voters ?