You know, I see an Unintended Consequence of the passing of any Smart Gun law even if the technology was flawless....and Liberals would cringe at this effect.
Since many folks will share a "utility" firearm, say .22 plinkers or 20GA rabbit guns and perhaps anything not use as an individual's daily carry gun, there would be an increased need for these firearms...and some part of that need would become increased demand.
This would mean increased sales/income for gun manufactures and an increase in the number of firearms possessed by citizens.
I can see a industry spokesperson making a statement something like this:
"While the Firearms Industry opposes any Smart Gun legislation because the unreliability of the technology would create unreliable firearms and endanger those who's lives depend upon their firearm, the industry would financially benefit by the passage of such a law because it would require additional purchases of shared firearms and any accessories required for their use, maintenance and storage."