What came to mind when I read your post was....
What if they were both breaking into the pool hall to steal a pool que that belonged to a local pool hero who happened to be both of their father of course this would not be revealed until the end..... The prejudice and hatered they have for the other race could be the legacy their father gave each of them in the limited time he spent teaching them pool.... this can be shown in flashback scenes with the father and young main characters he teaches hatred while he teaches pool......
Now this opens the door to many auxillary characters like a fathers friend who knows the family secret, etc. etc.
Also maybe they both know a patented shot their father used to do something really wicked....
I guess without hearing more about your story
I feel a need for more conflict and a stronger reason than just conversation for them to change a lifetime of prejudice....
Just throwing some crap in the wind....
Let's see what sticks
What if they were both breaking into the pool hall to steal a pool que that belonged to a local pool hero who happened to be both of their father of course this would not be revealed until the end..... The prejudice and hatered they have for the other race could be the legacy their father gave each of them in the limited time he spent teaching them pool.... this can be shown in flashback scenes with the father and young main characters he teaches hatred while he teaches pool......
Now this opens the door to many auxillary characters like a fathers friend who knows the family secret, etc. etc.
Also maybe they both know a patented shot their father used to do something really wicked....
I guess without hearing more about your story
I feel a need for more conflict and a stronger reason than just conversation for them to change a lifetime of prejudice....
Just throwing some crap in the wind....
Let's see what sticks