Final answer:
One critical flaw of southern Reconstruction governments was the opposition and resentment they faced from white southerners who viewed the process as a time of 'negro misrule'. They complained of corruption on the part of freed people and northerners.
Step-by-step explanation:
One critical flaw of southern Reconstruction governments was that they faced great opposition and resentment from white southerners. The sight of once-enslaved Black people serving in positions of authority as sheriffs, congressmen, and city council members stimulated resentment at the process of Reconstruction and its undermining of the traditional social and economic foundations of the South. White southerners referred to this period of reform as a time of 'negro misrule' and complained of corruption on the part of freed people and northerners.