It's possible. I wouldn't be a bit surprised. You would be surprised at how many small, religious communities of Whites don't like Black people. Or perhaps, not. I suppose Jesus never got around to explaining brotherhood and lack of stereotyping for our people. LOL
Crime will be the main excuse, but honestly, a person sitting down to pay for food is not a criminal and people hated our people before so many became criminals.
There is also the vague generalization of "immorality". I have heard this from many religious people of various faiths and ethnicities. This is usually from someone who caught a glimpse of a music video from someone like Lil' Wayne or somebody. This is truly hilarious when you consider that most strip clubs, porn empires, liquor stores and distributorships, drug cartels, etc. are all not Black.
It's like me seeing a White couple in a porn movie and then seeing one at the mall and moving away from them in fear.
I had an old mag (Nat Geo, I think) I kept where there were some Black Amish. The two women they interviewed were discussing how even Amish women gossip.
In any case, I am truly sorry. Stuff like that happens to me all the time by all kinds of people and it never ceases to amaze me.
I wish I had answers for you.
I know there must be good Amish too, first of all, just out of statistics, but also because my cousins in Pennsylvania go and buy desserts from them and furniture all the time and say they never have any problems.
Maybe these weren't the Amish that do the pies and furniture?