The "power structure" of American Protestantism is too divided ideologically to have any real power over its believers.

The ideological conservatism seen in the South and interior West extends from Roman Catholics to Baptists to Anglicans to evangelists; religion is not the main factor.
Opposition to big central government and its spending, dislike of change, opposition to people "who are different" (gays, Muslims, etc.) extends across religious distinctions.

Baptists, often singled out, are not uniform; there are two main groups, one very conservative (Southern Baptist Convention), the other moderate (Cooperative Baptist Fellowship).
Georgia, e. g., is 70% Protestant (24% Baptist), 12% Catholic, 13% non-believers; Savannah and Atlanta have strong Jewish elements. (Wiki data on percentages).