That’s what I was thinking too.
It seems like a crazy law, but it also seems like a law that would be very easy to comply with. Just don’t designate any particular toys that are appropriate for a particular sex.
Just have a toy aisle for monster trucks, one for dolls, etc without any designation of which sex would prefer to play with them.
This law sounds like a solution in search of a problem.
Sell the dolls in packaging that is impossible to view the doll inside the package.