I understand the logic of my parent's statement. To rephrase my question: We have a two-party system, and we do not have a national majority vote. Therefore, in

I understand the logic of my parent's statement. To rephrase my question: We have a two-party system, and we do not have a national majority vote. Therefore, in absence of other evidence, I must assume there is a low upper bound to the importance of a majority vote on our two-party system.