The right ideologically represents consolidation of power and conformity. The left ideologically represents distribution of power and freedom of expression. All of those things lie in a balance, and all are necessary for a functional society. That balance is the big problem. When one ‘party’ is focused on unifying behind a powerful person regardless of the broad reaching implications of that accumulation of power, while the other ‘party’ is focused on wrangling different ideological groups towards the overlap in the EDIT: Venn (not vent. Thanks autocorrect) diagrams of their interests and goals, you tend to observe a relative ‘difficulty in organizing’.

Of course, there are other viewpoints that would disagree with this analysis.