Board Thread:FAQs/@comment-28683979-20190811202825/@comment-27144409-20191028010810

my bad

I'd say that there probably have been or will be. It doesn't make narrative sense for the SEW genes to be incompatible. Blake's arc is tied to equality and the show writers show that any bigotry hurts everyone. For them to race-lock any major and meaningful special abilities wouldn't make sense.