Chinese americans moved west and also the Cherokee Indians back than where they were forced to move west then they got killed and that is why they call it the trail of tears because some who made it to the west and others who didn't, they call it the trail of tears because they still got killed either way.
He is so deep into the walk that all that is left to him is the walk itself. He lost all his hopes, his dreams and likely had before the walk even started. The walk was a giant death wish and he was going on till he met it.
It is true because if you look for colonial time books it tells you