Complex sentence: The idealist and pacifist ideas of the Quakers also encouraged many to boycott products that were considered to be tainted by sin; salt due to its role in raising war taxes; sugar because it was produced by slave labor.
Split into simpler sentences: The idealist and pacifist ideas of the Quakers also encouraged many to boycott products that were considered to be tainted by sin. This included salt, due to its role in raising war taxes, and sugar, because it was produced by slave labor.