In consultation with the various retailers I deal with on a daily basis, most are definitely supportive of trying to adapt to a two-tier system as they do in the U.K. I believe it is probably the most effective and comprehensive solution to address all the issues.
If that were to be the direction, further consideration would probably have to be given to how that would be implemented to other airguns that are affected by this industry. Airsoft is primarily sold through very specialized stores that are able to accommodate this sort of solution, which we definitely can and would do. However, larger, big-box retailers that sell traditional BB or pellet guns might have significant challenges adapting to a solution like that.
You would have to either do something extra for them or make some sort of distinction between airsoft and traditional BB and pellet guns. I don't know what that would be, but further thought would have to be put into that.