Why do fascist and communist governments claim that they govern by the consent of their people?

Fascist and communist governments often claim to govern by the consent of their people to legitimize their authority and maintain control, presenting themselves as representatives of the collective will. They may employ Propaganda to create an illusion of popular support, portraying dissent as a threat to national unity or social progress. By framing their rule as a reflection of the people's desires, these regimes seek to suppress opposition and justify their actions, even when those actions contradict the principles of democracy and individual rights. Ultimately, this narrative helps reinforce their power and suppress alternative political ideologies.