The feral gummint (both parties) needs the UN to facilitate treaty-making -- treaties which trashed out our constitution years ago. Judicial activism is the out-working of the UN agenda. That's why there will never be any real effort to oust the judges. They are 'chust doink their chobs' on behalf of global governance.
The best book I've read on the topic is "The Coming Collision -- Global Law vs. U.S. Liberties" by James L. Hirsen. Still available at the Conservative Book Club at a greatly reduced price of $ 9.95.
Make me KING for just 1 hour and I could fix that problem! Probably a few others too.