Original sentence: The Wedge strategy is a political action treatise that was included in fundraising materials for the Discovery Institute, an organization that, as part of its many activities, hopes to promote Intelligent Design as an alternative to scientific naturalism and materialism, particularly and evolution by natural selection
Edited sentence: The Wedge strategy is a political action treatise that was included in fundraising materials for the Discovery Institute, an organization that, as part of its many activities, hopes to promote Intelligent Design as an alternative to scientific naturalism, materialism and Darwinism (macroevolution through purely materialistic mechanisms)