Yes, but even if they are important does it mean a artificial thing can run off and be a hero in some prophecy? Take it like this:
If you've ever played YuGiOh, you would know that there are fake cards. Fake cards wouldn't be the winning card in a tournament because they are forbidden.
The force is strong in Anakin but he's too fake to be real. Besides, 10 minutes of good didn't make up for years of evil. He wasn't fit to be a candidate after the incident on Mustafar.
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