http://en.wikipedia.org/wiki/Demographics_of_the_Bahamas
Population 309,156 Cant be too many thousands in Miami. Total population is not that large. Where are your figures from? I found this in the CIA world book
Net migration rate -2.13 migrant(s)/1,000 population (2009 est.). In other words their legal migration rate is negative. So why would they be migrating illegally.
Bahamians are granted a six month Visa waiver for the States.They go over to Miami under the pretense of taking a''Vacation'' and rather coming back in 6months as per the waiver agreement, they stay indefinitely for years....hence the terminology ''out of status''.
then of course you have those who are involved in drug ruining....
Negative migration? Nassau is ghost town dude! Majority of the native Bahamians who are educated overseas end up staying in their respective countries,and the ones who are left are slowing leaving for greener pastures.Why do you think they needed a 'foriener' like me to come work?