So what if the pledge was written by a socialist? The US Constitution was written by radicals, revolutionaries, and slave owners.
I know what you mean, there is such an uproar of the American people demanding that Congress remove 'under god' from the pledge, uh, No! There's NOT. The only uproar is being made by a few fruit cakes from the far left who want to revise the all law including the Constitution to follow the ACLU.
...Congress sure did make the majority of the American people mad when they 'updated the pledge' to include 'under god,...uh, no, in fact the large majority of Americans agreed with Congress which has every right to make law.
I know what you mean about uproar though. I still remember how badly the American people begged Congress to remove traditional, voluntary, teacher-led, prayer in schools. And how Congress finally followed the will of the American people and overturned a 150+ year old understanding. Uh, NO! They didn't. Removing prayer was a judge-made law that followed no precedent and was simply revisionism.
Old habits are indeed hard to break, I bet some teachers that had following their old habit of leading school prayer, just like Americans had done since the 1600s, had a hard time pretending to agree with that wedge.