Imagine if instead Miami built MetroRail extensions to the beach and everywhere else it should go, increased TriRail frequency and express services, built a real network of fully segregated greenways etc etc. It would turn transport nightmare into transport heaven. We don't need more cars on the streets of Miami or the I95...
Well that would cost Miami taxpayers hundreds of billions of dollars, and this costs Miami taxpayers nothing. It would also take decades. This will be happening next year. Build all the transit you want. You need something for the next 30 years while you're doing that.
trirail frequency increases can be done overnight
a greenway network can also be built quickly and cheaply
metrorail extension would cost more but still less than it costs to build and maintain roads
but they are too busy spending billions building even more car infra which will only make traffic and congestion even worse