You are continuously posting saying that you have no idea what to do and everyone is telling you what to do and you will not listen.
A large percentage of students who attend Caribbean school are not successful, so much so that Caribbean schools do not release all their stats about students. That alone should alarm you and and keep you from Caribbean schools. What makes you think that you will fair better that most students who go to Caribbean schools? If you struggled at all during undergrad, then you will struggle in medical school as well, and being at a Caribbean school will only exacerbate that.
You refusing to take undergraduate courses because you have a bachelors is you being stubborn. How is it a "sucker move"? If an applicant does not have a strong uGPA they either do an SMP, a post-bacc program, or a DIY post-bacc. YES, a post-bacc pads your uGPA because you need to increase your GPA. Multiple adcoms on here have said that gGPA does not hold the same weight as uGPA. While yes, graduate courses cover more difficult and advanced material, it is common knowledge that most graduate courses are graded significantly easier than undergraduate courses. Most graduate students have 4.0's because of that. As an anecdotal story, last semester I took a graduate level Endocrine System course and 45% of the class got an A, 40% got a B, 10% got a C, and 5% got an A. You do not see those numbers in undergraduate courses.
You're calling my logical and the general logic weak simply because you do not agree with it. The stats have been posted in this thread before showing that IMG's do not fair well when it comes to matching. Yes, I am not a PD, but the matching stats and the surveys asking PD's what they think of IMG's do not lie and show exactly what I have said.
You are obviously passionate about becoming a doctor, so I just don't understand why you are so unwilling to do a post-bacc when so many other applicants have done it before and had success with it. Doing a post-bacc will take less time than a PhD and will raise your uGPA which is one of two things holding you back. If you want to do research and go into industry or academia, then a PhD is perfect for you and you already have an acceptance - go do that! But if you want to become a physician, getting a PhD will not help you - if you were to get anything less than a 4.0 it might even hurt you. Stop getting so defensive with people giving you advice (there's no need to say FOH lmao)