I have met all kinds of hikers on the trail and do not think any have had any problems that i have seen.
I have also been in the dogpatch more than once and never heard racist comments. But maybe i missed clan hour .
Most of this thread speaks to racism in the context that it can only come from white people. I for one have been walking down a inner city street more than once and been called whitey, honkie cracker or whatever. Guess it was bacause I was the minority there. Guess i judge people on their merits vs sterotyping every person in a certain area a racist.
Anyway i believe you will be fine. There are idiots and ******** in every race. Most of the people i have met along the trail are among the nicest i have ever met in life in general.