Funny you should ask.
I encountered a swastika and racial slurs written in a hymnal at the Air Force Academy chapel. It was in the last pew of the nave, so the vandal was probably a tourist visitor, not a worshiper.
I gave the hymnal to the narthex attendant on my way out.
Not talking about graffiti like what you saw. I mean a physical object like the cross that they’re complaining about. An object that can be tossed in the trash in five seconds if nobody wants it.