At this point I can only assume you are another sock of The Sock.
Only the States have authority to change the Constitution, Sock.
Wrong again.
Another example of your reading comprehension problem. Every amendment has been proposed by a 2/3 vote of Congress. The state legislatures ratified (with one exception). Therefore, none of our amendments have been added by just the states. They all involved proposal at the federal level.
Which amendment(s) were added by the states only?