I've never recommended that someone go to a Carib school, at least without some type of huge disclaimer. I also agree that's it's extremely risky and unwise for OP to attempt what he is saying. My original post in this thread said that he should not attempt to transfer, but try to gain admission to an SMP/post-bacc program and start over with the goal of getting in to some type of US school.
People on here can be unnecessarily cruel for no reason. OP has a good chance of failing out should he/she go to another Carib school. My anecdote was because I personally know of people who didn't even have to do any grade salvaging who failed out and are successful now stateside. Failing at a Carib school does not automatically relegate someone to being a subpar student. I even failed a major exam while there. It's really luck of the draw sometimes. We all go through some ****ty situations. Unfortunately, if you're abroad where there is no P/F system, it only takes 1-2 major screw up and you're out.
It may very well be that OP doesn't really have the ability to perform well. However, appealing to OP in a humanistic way is better than ****ting on his hopes and dreams. You know what makes most people want to do something even more?.. Telling them they can't without appealing to their emotions. At least give people like this some type of solid plan or don't respond at all. "hey, transferring would be extremely unwise... you can already take a look at NRMP data and see match stats for people who haven't failed. If you truly want to be a physician, attempt to gain admission to a post-grad program, fix up your study skills, then reapply. If you don't want to put in that work, but would like to stay in healthcare, you should really look into nursing or PA programs. They are great options and there's no shame in going that route."
Most of us don't like sugarcoating things, we're old enough that most people should be able to take the blunt truth. But when you're dealing with people who are desperate, the type of responses that most give on this board are going to lead to them ignoring you anyway, going ahead with their initial plan, failing out and being in a crapload of debt.