This is stupid. They should leave the Christian chapel as-is, and build another one that is devoid of symbols if they want one like that. Besides, I was raised Protestant, and I'd have a hard time worshiping in a chapel that didn't have a cross in it.
The chapel is set up with a typically Christian format because it was a part of the Colonial Williamsburg restoration. The design is similar to how the space would have looked in 1732.