AB 1953 is a mess. Besides being Draconian, the law is unclear and much will be determined in the courts. Beyond the items mentioned are goofy things like brass water meters are OK but brass meter nipples are not. Then there is the issue of faucets, expect to see some real garbage on the market - Delta's 100 DST leaps to mind. What about repair parts, for example, are replacement stems exempt or are all pre 2010 valves now throwaway items (thank God tub/shower valves seem to be exempt). Galvanized pipe, nipples and fittings may also be an issue, there is lead in the coating. The list goes on and on.
Lead is certainly an issue, at least in areas where it is leached out rather than being oxidized over, but what will it be replaced with? Last time lead levels were reduced many manufacturers replaced it with bismuth, was that an improvement or step sideways? The jury is still out on many plastics, some linked to health problems. I see much leaping and little looking.
On the economic side, retailers and wholesalers are stuck with items they cannot sell or have to ship to branches out of state. Many items are currently unavailable. Sellers are going to financially impacted, especially small retailers. And California is doing this right at a time when their economy is in the dumpster.