Demerits of Democracy:
1. Corruption: There is a chance for the full spread and evergreen corruption. A democratic leader is in position for a limited period. So there is a tendency to make money by use of power. Once he loses his power, he can live in a different country and evade the laws of the country. Hence it is easy for industries and companies to invest and get undue benefits from other nations by bribing that state leader. This is so common that dozens of U.S companies face bribery allegations in another nation. In a democracy, corruption chances cannot be controlled as long as people of the entire nation wants to avoid it. This includes leaders, officials, people, businessmen, etc. Even if one is not in a mood to avoid corruption, the entire system will go towards corruption gradually.
2. No protection for the common man: There is no protection for the common man as the leaders itself try to misuse or misbehave in public. Even security personnel and police treat injustice differently. They favor those in power or wealthy and neglect or even cause trouble to those who are sick or weak socially.
3. Divide and rule: The leaders try to play divide and rule games. They, divide the people based on religion, caste, languages, etc. and try to gain votes to get power though there are not worthy to rule the state or country.
4. Unfair businesses: They encourage unfair trade practices to get support for election campaigns. This we can see as most politicians support rich people in return for monetary benefits like party funds etc.
5. Media misuse: In dictatorial and communal rules you can notice, journalists cry for their freedom and rights. But in democracy, media try to fool the people such that they can influence the voting behavior. In many countries, media channels work for some or another party. They even have no value for nation prospects. They even make news which can be problematic to the countries security. Their goal will be just to portray one leader as evil and others as the right to favor their choice of election results. This is possible because few political parties or leaders control the media.
6. Lack of justice: Democracy is one wherein there is a delay in prosecution. You can notice that in kings rule, the punishments are not only severe but very fast after the crime. But in democracy, the sentence can be declared after all those involved in the case become old or even die. So freedom can seem to be eviler.
7. Unfair participation: Not all people participate in voting. They do not utilize their right to vote due to lack of interest or laziness. Sometimes, they also do not vote if the candidate of interest is not available. In recent US elections, the black Americans did not vote as they did not have a candidate of interest. In the previous elections, they voted for Obama who was not white.
8. Emotional manipulation: Politicians try to gain votes by emotional manipulation of people minds. This is quite common in the name of nationalism, secularism, claims to stop something, achieve long-standing demands, etc. This makes people get connected emotionally to that party or leader. Doing so, people vote them without thinking of other factors which can be misused.
9. Disturbance in public relations: Every person perception of a political party varies to a certain extent. This includes the members of a family. A husband would like to vote for one part while his wife for another party. Similarly, this happens between brothers, sisters, friends, etc. This variation in preferences could sometimes lead to heated debates and even discord in relationships. I have seen some people stay away from their home during elections. The reason for that was to avoid mental stress during elections. They would return home once voting is over. Thus, the democratic form of political affiliation can lead to troubles in relationships. For more go through the fascinating book on why democracy does not lead to prosperity but social conflict.