When a majority of people (as in Bolivia and elsewhere) lack basic human necessities like adequate food, housing, health care, education, and equal treatment under the law, while a small minority that, without contributing as much time and labor, hoardes excessive amounts of the land and wealth that is available, simply because their ancestors robbed it and they "inherited" it, THAT is what causes "polarization."

Opposition to such injustice is, historically, the only path to peace. You simply cannot impose a peace without creating justice, including economic justice.

There are times when the only dignity left for human beings is to resist, that is, to make visible the silent polarization of society that already exists.

There is no solution, in Bolivia and elsewhere, that involves everybody just holding hands and singing Kumbaya. To fix a calcified injustice, you have to break it, forcefully. Gandhi himself - accused always of "polarizing" things wherever he went - knew that.