Not to mention the issues of access you run into when money and influence are able to build up behind one or two campaigns. Two insanely massive parties are ba

Not to mention the issues of access you run into when money and influence are able to build up behind one or two campaigns. Two insanely massive parties are basically like competition between two massive marketing budgets. Trying to compete against the Republican or Democratic parties is like trying to start a new cellular carrier from scratch to compete with Verizon and AT&T. Sure, if you managed to get enough "viral" support and maybe some wealthy investor you could mount a campaign big enough to get into a debate but the frameworks that have grown around the two-party system make it very difficult to take advantage of any popularity boost. Trying to compete with the two established parties in a "winner takes all" system would require working against the entire political system which is overwhelmingly made up of people in those two parties.