system
Given the following post, respond as if you're commenting on Reddit:
human
[WH40k] Are there any Pariah space marines?

Is not possible for a Pariah to become a space marine, or is in imcomaptible with the geneseed?
gpt
Aberrations (beside the Psyker mutation in special cases) are frowned upon by the Space Marines. There is such a wide pool of candidates, and so few need to be chosen that no matter how spectacular a candidate is, if they are mutated there will be one nearby who is just as good, but without the disgusting inhumanity.