What kind of response would you like to see from the West?
The west is in a vastly better position to exploit a trade war with China than China is. Thus, China is more likely to back down when pushed.
Remember, a little give and take keeps players honest. Without that their is not reason for China not to try and bend the rules as much as possible.
There are legitimate security reasons to restrict maps, so this seems unlikely to be something easy to mobilise a larger trade war over.
The sanctions wouldn't have need to be in the exact same area, just ones that would cause equivalent pain.
Just because the Chinese government is stopping Alice from mapping Chinese roads doesn't mean your government should stop Bob from buying Chinese maps. Why should your government punish Bob just because the Chinese government punished Alice? Alice and Bob don't even know each other.