He's 100 percent a direct descendant. His Great Grandmother is the sister of the man who looks exactly like Ryuma, as does Zoro.
They are like a 100 generations apart though.
That is one saving grace here.
What Zoro potentially inherited is the will of Ryuma, not the bloodline which should be pretty miniscule after several generations.
Inheritance of will that appears over generations is a common theme in OP
This is not my problem since most of the zorostans treated sanji of judge's sperm and prestigious lineage without taking into account his childhood... today the wheel has turned since zoro descends from the lineage of ryuma
??
What are you even saying lol.
Zbois were saying that Sanji's power comes from experiments from Judge, which is at least partly true.
Honestly should've just left Sanji at being a "failed experiment", was the appeal......but Loda shenanigans meant he got germa bio powerup anyway.
Ryuma is countless generations away from Zoro, his bloodline is miniscule.