"God Bless America" or "Amazing Grace" could be the "Star-Spangled Banner's" replacement.
Although there is no mention of the country in "Amazing Grace," though even in the SSB it is primarily about the flag and surviving war (at least the first stanza). Odd that, both the national anthem and the Pledge of Allegiance are about the flag, not the country (at least primarily--there is a pledge of allegiance.....and to the Republic).
Yes, this is off topic. Just ranting a little bit.
Never in a million years.