Fred,
You state that you see no police. There are thousands who post on this board who have seen them personally, hundreds here who have taken pictures of them either on purpose or they just happened to be in the photo, and many here who have spoken to these officers that you claim do not exit.
That may be why you feel get "attacked" or "lectured". Others posters see them because they are indeed there.
Jamaica is not a fairy tale, it is a real country. And yes, this is truly an incredibly complicated topic. Entire volumes could be written about all the aspects of any country's economy and how and why it is what it is, and what things can or cannot be done to change it to improve all aspects of its infrastructure. As well as what aspects should be changed or not in the first place. And I doubt you would ever get a consensus on the topic because it is so complicated.
The basic facts have already been stated. But deeper conversation about all the socio-economic aspects of Jamaica are beyond the focus of this board.