The Constitution was written to protect individual freedom and limit the ability of the government to encroach upon it. The liberals don't like that. The Democrats are very unhappy. The Constitution limits government too much. So they want to rewrite it, have a second Bill of Rights. So they want a new Bill of Rights that spells out what government can do instead of a Bill of Rights that tells government what it can't do.
If we only look around us, there are a thousand reasons for us not to be happy, and it is simplicity itself to blame our unhappiness on the things we lack in life. It doesn’t take any talent at all to find them. The problem is, the more we focus on the things we don’t have, the more unhappy and more resentful we become.