Civil asset forfeiture laws could fall subject to the same "status quo" problem as drug laws. Even then there are states who are taking steps to change them (e.g. CA SB 443 revote in Aug 2016), which could also be said about marijuana decriminalization.
Remember there are CAF laws for much more than just drug dealers. Most states have CAF laws for drunk drivers, drag racing, animal fighting (cock fighting and dog fighting), gambling, and wildlife (fish and game) poachers.
To totally focus on drug dealers for CAF laws is pretty myopic. Most people support CAF for a myriad of things. Do you think it was right to seize Michael Vick's dogs and then rehabilitate them and find them homes instead of putting them down? Should a guy who's poaching deer lose his guns and license and face stiff fines?