It's also telling that when there is a clear analog able to be used in sports you forgo it because that doesn't fit your argument and thus you go for a massive reach by latching onto Rosa Parks.
I think he's more likely to be Charles Follis (fun fact, born in my little home county) than Jackie Robinson. And again, nothing wrong with that. But in terms of impact, specifically lasting, Charles doesn't hold a candle to Jackie. That doesn't mean his "first" was meaningless to those who knew of it at the time, to himself, or to his sport.