Trying to understand how a lib thinks can actually give you a headache. Once when an unwashed lefty actually tried telling that Dennis Kucinich was a staunch defender of the Constitution, I suffered a synaptic sprain trying to wrap my head around her thought process. I vowed never to go there again.
You should have asked her to define Constitution and then give you examples of its application to her life. You would undoubtedly have been amazed.
As to the first concern she would have defined Constitution as historical/cultural tradition or some such variation. There is no sense in which a liberal understands Constitution to mean a document.
As to the second in order of importance are such profundities as abortion (#1), Separation of church and state (#2), gay rights (#3), environmentalism (#4), and BO as state god (#5).
Note especially that none of these items had any significance until the promulgation of the ACP platform. They are each Marxist doctrine. This most insidious philosophy parades itself as the full expression of enlightenment. Its adherents will always assume any adversary is neanderthal.
There you have it. A short walk into the brain of a liberal.