The statement is false. St. Lucia is a wonderful island. Barbados is wonderful. I have never been to Turks but I hear they are lovely. So many of them did turn out just fine. Those which did not were the ones which gained independence early on and killed off all the whites, leaving uneducated slaves to try to build a nation.
I don't wish to put down immigrants from Africa, My hope is that all nations live in the relative peace of other countries, such as St. Lucia. Good luck to you.