Though then he wouldn't even know about that kid, Corsair knows full well about Alex and seems to go out of his way to forget and ignore him...
To be fair, Corsair just kinda gave up on the real Scott too.
I just used Alex as I couldn't remember the last time that he and Corsair interacted at all, and Corsair did come back for teen Scott...also wondered why they never tried to do much with teen Scott and Alex...as teen Scott could then want to go back and find Alex that much sooner as he'd then know where he was...and all of that...