Racism influenced the growth of the modern Republican Party through a historical context, which occurred from the passage of civil rights legislation by Democrats, which pushed many white Americans who were against these rights to the Republican Party.
Civil rights legislation was aimed at racial equality, so that there were equal rights between black and white Americans.
Southern farmers were against these ideas and, even with the official end of slavery in the country, blacks were still marginalized and discriminated against.
By officially defending white supremacy, the Republican party expanded mainly in South, through the adhesion of whites opposed to the approval of racial equality proposed by the Democratic Party.
Learn more here:
https://brainly.com/question/1142564