ultimately

Democracy is the natural system of government in Protestant culture because truth lies with the crowd. Autocracy is the natural system of government in Catholic culture because truth lies with individual man (see here).

How do these two cultures deal with the problem of replacing a bad government? The answer seems to be quite obvious in Protestant culture: by elections, replacing the crowd or the majority in power by a different crowd or majority. But how does Catholic culture remove the autocrat from power? The answer is provided by the Catholic Church in clear cut terms (see Cathecism: 2242 quoted here): first, by not obeying him; second, by revolting against him; ultimately, by killing him.