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.
Most pagans/Wiccans have more respect for other people's religious beliefs than that. Even though whoever put the cross there was way out of line, the cross itself is still a sacred symbol to many other Christians who wouldn't dream of doing something so insensitive, and tossing one in the trash would be disrespectful to them.