Why did only some southerners support republicans reforms

Answer and Explanation:

Not all the Southerners were were against the Republucans. The Southerners that supported the Republicans reforms after the Civil War were those that had been marginalized in the slavery system in the South and also the ones that projected to benefit from economic opportunities created by carpetbaggers.

powers  are  denied  to the  national governmentin three distinct ways: some  powers, such as the  power  to levy duties on exports or prohibit the freedom of religion, speech, press, or assembly, are expressly  denied  to the  national government  in the  constitution.