Demerits of Unitary System of Government; Easily Fall Out of Touch: Since all of the power is centralized, it becomes all too easy for the government to fall out of touch with what the majority of citizens truly want or need. This can cause conflict between the government and it’s people, which is never a good sign for a country.
Response Is Slow: There is only one avenue to travel if you have a local issue within the government. The system becomes very easily bogged down with these smaller issues, that they rarely ever get resolved. Even if they do get some attention, it can take a ridiculously long amount of time.
A Glorified Dictatorship: Opponents of unitary governments claim that all of it’s characteristics and inner workings are nothing but a dictatorship with a larger dictator. This isn’t entirely untrue. Since there is only a single unit of power, the citizens can becomes easily exploited for the government’s own benefit. There is also no checks and balances within a government of this kind, leaving many things up to chance.