First you get control of the Senate.
Then you get control of the SCOTUS.
Then the SCOTUS overturns Heller and McDonald.
Then the SCOTUS sets precedents against the right to bear arms.
At that point you don't have to "amend" the Bill of Rights as the path has been established for any state, city, or community to make it impossible to buy or own guns. Then, the gun control areas establish laws that prevent current owners to transfer or sell their currently owned weapons. Also, decreeing that current gun owners register their guns. Like Buffalo NY, upon death an officer arrives at your home to collect the dead owners guns.
Instead of teaching children how to safety handle guns in our schools, the gun control pukes will indoctrinate the children into the "evil" of guns.
The gun control pukes say it won't happen, but it will.
Then the SCOTUS sets precedents against the right to bear arms.
Then those WHO GIVE THE ORDERS begin having "accidents" or disappearing.