How does a democracy encourage the formation of political parties?

The "framers" of the constitution did not intend for political parties to be created, however the "right vs. left" divide forced it. This same divide has been true throughout history since the dawn of civilization.

Its not that democracy encourages political parties. Democracy just allows political parties to be formed, but often when one or two political parties share the vast majority of funds or power, they are able to outspend "third party" candidates by huge amounts and essentially control the entire government.