The key problem is that it does not address the distribution and accumulation of wealth. In fact the current mining system promotes this. People mine, collect coins, re-invest. Those with more coins can invest more and make more and over time the distribution of coins is unequal with a small percentage of people holding a majority of the coins.
There is nothing wrong with saving, in fact, production and savings is what allows an economy to grow and a currency to gain strength, the reason I bring this up is because you sound like these people who more openly whine about people 'hoarding' Bitcoins. What Bitcoin addresses is the problems of central banks and government regulation, the problems that occur in the current economy happen precisely because people are trying to artificially engineer the distribution of wealth. You need to accept the fact that there will always be rich and poor and there will always be problems an economy, the best thing we can do is make it so its easy to get out of the situation yourself or make being poor fairly comfortable.
If you want to stay an economy where two different groups are conspiring to steal everyone's wealth and redistribute it at will ( usually for corrupt individuals ) to get people re-elected and gain more personal wealth and to force you to work for much longer hours and for less pay be my guest, no ones stopping you, I don't understand why people so rabidly attack Bitcoin sometimes.