A 'house of cards' is any legal system based on "stare decisis;" that is, on prior decisions by other jurists, like our own self-derived version of the common law of England; rather than upon the more rigorously exacting, objective, geometric and spiritual principles which have withstood the ravages of time, turmoil, and man!
Such a system of justice is shaky like its mutable foundation, the house of cards that it is, and was, built upon. We deserve and can do much better!
Injustice compounded is not justice.