Her way of thinking is so parochial that she can't get away from the idea that people's academic backgrounds are everything.
ご質問ありがとうございます。
"Her way of thinking is so parochial"=「彼女の視野は狭く」
"that she can't get away from the idea"=「彼女は~という考えから逃れられない」
"that people's academic backgrounds are everything."=「人々の学歴が全てだということ。」
ご参考になると幸いです。