That's Mondatta, the leader of Zenyatta's monastery. He and the rest of the monks went down the road of a dogmatic, campaigning style of reconnection of the omnics and humanity.
Zenyatta on the other hand thought that interpersonal connection on a smaller scale was the true path to healing the rift. This led to stuff like him becoming Genji's mentor and teaching him to accept his humanity along with his cybernetic aspects.