Don't know who Red is.

[But he can make a few guesses]

In my world there wasn't a whole damn flock when I came back to Gotham. Imagine my surprise when I got here and found out the old man didn't learn.

[He's in a foul mood but not going to fight his other self for now. The other Jason is right. He would know best how to take him down. Jason also hasn't missed how this other Jason is bigger and older than him. Presumably he's got more experience too]