Translation of Vermeidung

I found the idea of having two health care systems disgusting. We entered the rooms of the local hospital and the images there were horrifying. I don't know why he took me there until this day.
But we need to asked ourselves why we actually are built in such a way that we so easily dislike others and build stereotypes. What leads to such behavior even in well educated individuals?
On the way we visited many small hill tribe villages. The walk was through green, wet rice fields. We really enjoyed it. Our guide explained us about the region and taught us some Vietnamese.