The information about this specific “fake MAGA defector” story is not available in the provided search results. The search results contain general information about Trump’s immigration policies from both his first and second terms, but do not include details about any particular individual claiming to have left MAGA over immigration policies or any exposé of such a person being fake.

To write an accurate news article about this story, I would need search results that contain specific information about the individual in question, their claims, the timeline inconsistencies mentioned, and the evidence showing they are a “fake defector.”