Regards,
~dt~
The first question I'd want answered is whether this is the only chapel connected to the campus. If so, then I can't see the problem. Appropriate symbols will appear to suit the use of the chapel.
If it's not the only chapel, then there is another answer that would be more appropriate.
When the college was owned by the church, it could do as it pleased. Now that it is publically funded, other issues arise.
Frankly, when this chapel was built, there were few Jews in the USA, much less other non-Christian religions. That's no longer the case.
Historical preservation is not the only consideration, it seems to me. As I said earlier, even within Christianity, there are difference among the symbols used in worship. Many protestants would object to a crucifix on the wall. Many Catholics would object to a plain cross on the wall.
As long as it's a publically funded school AND it's the only chapel, then I don't see that there's any choice.