The decision to put pro baseball in Miami was and is a horrible decision. There isn't a market there to support it. And now the local government has injected themselves into a market to "create jobs" but in the end, they and the tax payers are trying to support a market where there isn't one.
Even if the owner of the Marlins wasn't a slimeball and the Marlins were good, the fans won't support the team.
They should cut their losses and move to San Antonio.