Embarassing writing and argumentative ability ~~ 'the answer to society's problems is for everyone, young and old, rich and poor, male and female, tall and short, to commit themselves to solving society's problems' (slight paraphrase)
Essentially she doesn't have any experience dealing with constitutional law and has shown nothing which would suggest that she has a particular aptitude for it.
She's not a judge, and how do you know what she has thought about?
I wasn't aware that being an expert in constitutional law was a prerequisite for being a supreme court justice. I am no expert on the Constitution, but I don't believe there are ANY qualifications to sit on the Supreme Court.