Survival of the Fittest Thought Patterns

Today a thought floated through my head (amongst 60,000 others) that relates to Darwin's,' Survival of the Fittest' theory..And here it is:
Can it be a possibility that our unproductive or useless thoughts get weeded out in the same way as a species gets extinct after failing to adapt or rule..in the form of illnesses and ultimately premature death? Those thought patterns that are toxic to Life and just do not help in the continued forward march of humanity are best removed from our planet..these mental aberrations somehow cannot grow beyond the limitations which they created in the first place and thus have no choice but to perish..at the level of the body of course! The eternal, perfect spirit which characterises our true essence then merges somewhere else and continues its journey in another physical plane..

Maybe we need to understand the motivation that guides rapid multiplication of carcinogenic cells as more than a cellular phenomenon..its heralding a faulty thought processing function that has gone awry for too long and which needs urgent repair..or else be prepared for early exit.

Well its worth a thought!