Don't you see the kind of people you are trying to rationalize with narrator. TBelle and Isaac are the worst. Have your fun with them, but don't even bother trying to correct their stupidity. They spend their days reading the bible and are content with getting dumber and more out of touch with reality everday, rather than trying to improve their level of intelligence like the rest of the world.
You see, since Isaac said one CANNOT be
3 a : a young man : GUY; especially : one who is virile and promiscuous b : a tough person c : HUNK 2 then TBelle is going to ride that sinking ship with him all the way to the bottom. It happens every time and it doesn't matter how completely hillbilly stupid the statement is or how many dictionary definitions you link to.