Complex sentence: Advocates of democracy while justifying democracy that the rights of citizens are well protected in democracies than other forms of government, however it has been observed that many a times even democracies have miserably failed to protect the rights of their citizens.
Split into simpler sentences: Advocates of democracy while justifying argue that the rights of citizens are well protected in democracies rather than other forms of government. However it has been observed that many a times even democracies have miserably failed to protect the rights of their citizens.