Mark Cuban said 'only idiot' founders would stay in California under a wealth tax. We asked 3 founders if they'd leave.

Mark Cuban told Business Insider there were "a lot of incentives" to leave California. We asked some founders if they'd stay under a wealth tax. Nicola Gell/Getty Images Mark Cuban said that "only idiot startup founders" will stay in California if the wealth tax passes. Business Insider put Cuban's theory to the test by asking founders whether they'd leave. One said he would. Another said he'd consider it. A third said founders want to be close to the epicenter of AI. Mark Cuban said startup…