You're right about the parallel. If you never again step foot in California, and have no assets in California, then perhaps there's no way for California to enf

You're right about the parallel. If you never again step foot in California, and have no assets in California, then perhaps there's no way for California to enforce their claim. But, even if no other state would enforce California's claim, couldn't the FTB get a court judgement against you in California? And then enforce by nabbing you next time you pass through SFO, or by seizing any property you might have?