There was no tax revenue to begin with-nobody paid income taxes in WA before the millionaire tax. The jobs the rich will take with are few and very specialized: tax accountants, security people, some administrative assistants. When billionaires leave whoever mowed their lawn or cleaned their pool will do the same job - for the next owner.
What the politicians will do with these taxes does not matter to me. The only thing I dispute is this sense of doom because, of my god, Bill Gates and Andy Jassy and Howard Schultz and Ballmer will pick up their toys and leave.