Sergey Brin donated $45 million to kill a California ballot measure this month. The measure would tax about 200 billionaires a one-time 5% on assets above $1 billion. He spent $45 million to avoid that conversation. Sit with that ratio for a second.
The question of whether billionaires should be "allowed" to exist is usually framed as moral philosophy, which is where it goes to die. Should one person control more wealth than some nations? Probably not, if you're building a fair society from scratch. But we're not. We're in 2026, California is facing a healthcare funding gap after the federal government cut its obligations in summer 2025, and about 120,000 SEIU workers are trying to close that gap by taxing the people who can most afford it. That's not philosophy. That's a resource allocation problem, and the people with the resources are actively working to keep them.
The Fleeing Act Is a Negotiation Tactic
Larry Page, Peter Thiel, and Travis Kalanick have all relocated to Florida or Texas. Hunter Horsley at Bitwise warns that billionaires will take their "spending, hobbies, philanthropy and jobs" with them if California taxes them. The "Atlas Shrugged" framing is working on Governor Gavin Newsom, who called the measure "really damaging to the state" and promised to defeat it. This is a man who needs the top 1% to keep paying nearly 50% of California's income tax revenue, so his anxiety is understandable. But the exit threat is, at least partly, leverage. These people are not moving because California became uninhabitable. They're moving because it's a credible signal in an ongoing negotiation.
The honest concession here: yes, a state that depends this heavily on a thin layer of high earners has a real structural vulnerability. If 200 billionaires leave, the math gets uncomfortable fast. That's a genuine problem, not a talking point. But the solution to "we've let the tax base get dangerously narrow" is not "therefore, don't tax the people at the top." That logic runs in a permanent circle that always ends with wealth concentration and public services shrinking.
52% Is Not a Mandate, But It's a Starting Point
UC Berkeley's poll, released March 19, shows 52% of California registered voters support the tax, with 33% opposed. Mark DiCamillo, who ran the poll, noted that support "drops in balanced arguments" and called the 52% a shaky place to start against a tsunami of opposition money. He's right about the fragility. Ballot strategist Brandon Castillo put it plainly: starting just above 50% against that kind of spending is hard.
But I'd push back on the implicit conclusion that polling fragility means the policy is wrong. Sergey Brin just demonstrated that $45 million can shape how balanced an argument sounds. The organic support, before the ad campaign, sits at a majority. What erodes it is not better reasoning. It's better funded reasoning.
The signature drive needs roughly 875,000 valid signatures by June 24. That's achievable. The harder part is November, when Brin's $45 million gets amplified by every crypto firm, tech lobby, and business group that sees California as the test case for whether wealth taxes can pass anywhere.
Congress should set a federal minimum on unrealized gains taxation so no single state bears this alone, and billionaires can't simply shop for the most permissive zip code. California shouldn't have to fight this fight with one hand tied by federalism. The fact that it has to tells you everything about who built the current rules.
