I started a new tactic with liberals:
Keep “under God” in the pledge. But allow them to substitute their own “ultimate authority” if they wish.
To some people, it would be “under Bill Clinton” or “under Hillary” (ycch) or “under the UN.” But make them state their ultimate authority. It’s FUN!
That ultimate authority to them would probably be the Supreme Court.
In reality, secular socialists don’t want there to be such a thing as “objective truth” because they don’t want to be “judged” against an unappealable yardstick.