Factually incorrect? Assuming "libs" want to change the words of the Constitution in order to make it a living document. The document was created to be living. Enough space was designed into the Constitution to allow for adaptation of the people.
More so, I don't think liberals want to change the words of the Constitution to fit their desire, I think most liberals (like myself) seek the change intended by the founders, through our representative government and formal law. [pfftt]Take the second admendment for example: liberals (at least most, imo) would seek not to eliminate the right to bear arms, but rather limit the extent of this right in the name of public safety.
Think in terms of free speech. I would defend the right for any American to excercise their right to free speech, but there are limits. These limits are created by the rights of other Americans as well. I do not defend the right for any American to walk into a church and drown out the sermon with profanity in protest of Christianity. These limits shift in many ways in response to social norms, and the constitution has provided the space for these shifts.
The one avenue the founders provided for in our Constitution that we do not use as much as we should today, and could help prevent much of the divisive national rhetoric, are the powers of the States, imo.