From George Washington’s Farewell Address:
“The alternate domination of one faction over another, sharpened by the spirit of revenge, natural to party dissension, which in different ages and countries has perpetrated the most horrid enormities, is itself a frightful despotism. But this leads at length to a more formal and permanent despotism. The disorders and miseries which result gradually incline the minds of men to seek security and repose in the absolute power of an individual; and sooner or later the chief of some prevailing faction, more able or more fortunate than his competitors, turns this disposition to the purposes of his own elevation, on the ruins of public liberty.”
“There is an opinion that parties in free countries are useful checks upon the administration of the government and serve to keep alive the spirit of liberty. This within certain limits is probably true; and in governments of a monarchical cast, patriotism may look with indulgence, if not with favor, upon the spirit of party. But in those of the popular character, in governments purely elective, it is a spirit not to be encouraged.”
He was prophetic. We now have the consolidation of power into the R wing of the oligarchy and the D wing of the oligarchy, the end result of political parties who seek to keep each other in power to the exclusion of those who would make real change.
The existence of political parties goes back thousands of years, and is inherent in any republican form of government. Perhaps you can get around it in a pure democracy, but I don't think so even then.
Parties are simply a way that people organize voluntarily to combine their votes on issues of importance to them.