William simmons capitalized on the rampant anti-semitism, anti-catholicism, and nativism of the 1920s to revive which group that terrorized its victims through a combination of pageantry, costumes, and violence?

William Joseph Simmons  was the founder of the second Ku Klux Klan.

Explanation:

Inspired by The Birth of a Nation, Col. William J. Simmons (May 6, 1880 - May 18, 1945), a preacher, and promoter of fraternal orders, led a cross burning on Stone Mountain, on Thanksgiving night 1915, that marked the beginning of a new era of Ku Klux Klan activity.

The Ku Klux Klan employed terror in pursuit of their white supremacist agenda. One group was founded immediately after the Civil War and lasted until the 1870s. The 19th-century Klan was originally organized as a social club by Confederate veterans in Pulaski, Tennessee, in 1866. They derived the name from the Greek word kyklos, from which comes the English “circle”; “Klan” was added for the sake of alliteration and Ku Klux Klan emerged.

In August 1925, 40,000 of its members marched in front of the White House.

the  wilmot proviso  was designed to eliminate  slavery  within the  landacquired as a result of the mexican war (1846-48). fearing the addition of a pro-slave territory, pennsylvania congressman david  wilmot proposedhis amendment to the bill.