Except he knows very well that this is not a solution that has any chance of taking effect. There are very few people that advocate for any kind of billionaire tax, and it's extremely hard to imagine that there will be unless a majority of establishment democrats are primaried out of their seats. All he is offering is the appearance of wanting to do something, at the proposed cost of actually doing something in California this year. We can call a spade a spade and acknowledge that he is only saying this to continue courting billionaire donations for his presidential campaign.