"A pure democracy can admit no cure for the mischiefs of faction. A common passion or interest will be felt by a majority, and there is nothing to check the inducements to sacrifice the weaker party. Hence it is, that democracies have ever been found incompatibl with personal security or the rights of property; and have, in general, been as short in their lives as they have been violent in their deaths."
James Madison, Federalist No. 10.
Madison's concern: "You are the minority and have the money. We are the majority and can legally take it with impunity. "
So - Madison had a problem with it, but he seems to have been a bit off in our case as to it's lifespan.
If you had taken his advice from his mouth, your childrens childrens childrens childrens would be dead by now and his dire predictions for the death of democracy would not have come to pass.
In any case - as I asked before ... do YOU have a problem with direct democracy ?