Referring to particular foods as "healthy" or "unhealthy" is reductionist and unscientific. All foods have both positive and negative effects. Certain meats are generally quite good, at least in moderation, particularly for getting high quality protein. Eating too many Brazil nuts can cause acute selenium poisoning.

Be more specific. If you want to convince anyone here then please cite high quality studies which actually meet evidence-based medicine criteria. All of the studies so far which claim to show meat is unhealthy were badly flawed observational studies which relied on subject reported data, lacked proper controls, and only showed very small effects.