The META has diversity because.
We have Electromagnets.
We have Six Samurais.
We have Blue-eyes
We have Red-eyes
We have Neos Fusion
We have Koa'ki Meiru
We have Survival's End
We have TRIAMIDS (F2P and can climb in DAY 1)
We have Dark Magician
We have Mermails
We have Crystrons
We have Cyber Dragon Beatdown + King of the Swamp
We have Gem Knights
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But ok, let me repeat it once again.
*Inbreeding is dangerous for society, because people who are inbred cannot formulate a rational opinion nor a valid argument. They just pretend to go away with whatever random idea they have. Very poor perception of reality.