Step 1: Understanding the Question:
The question asks for the reasons why Mikhail Gorbachev's well-intentioned reform policies (Perestroika and Glasnost) failed to prevent, and perhaps accelerated, the collapse of the USSR.
Step 3: Detailed Explanation:
1. Unleashing of Nationalist Sentiments (Glasnost): Gorbachev's policy of 'Glasnost' (openness) granted citizens the freedom of speech and the press, which had been suppressed for decades.
Instead of just critiquing the economy, people used this freedom to express long-suppressed nationalist sentiments, leading to strong demands for independence in various Soviet republics like the Baltic states (Estonia, Latvia, Lithuania), which the central government could no longer control.
2. Economic Disruption without Immediate Replacement (Perestroika): The policy of 'Perestroika' (restructuring) aimed to introduce market-like reforms into the rigid command economy.
However, dismantling the old state-controlled system before a functional market system could be established caused severe economic chaos, widespread shortages of essential goods, and immense frustration among the common people who expected quick results.
Step 4: Final Answer:
Gorbachev's reforms failed because 'Glasnost' unleashed uncontrollable nationalist movements demanding independence, while 'Perestroika' disrupted the existing economic structure without providing immediate relief, leading to severe economic crisis and public dissatisfaction.