Feeling good about government is like looking on the bright side of any catastrophe. When you quit looking on the bright side, the catastrophe is still there.
Anyway, no drug, not even alcohol, causes the fundamental ills of society. If we're looking for the source of our troubles, we shouldn't test people for drugs, we should test them for stupidity, ignorance, greed and love of power.
In our brief national history we have shot four of our presidents, worried five of them to death, impeached one and hounded another out of office. And when all else fails, we hold an election and assassinate their character.