It is really not easy to trust and believe into peoples bright (positive) nature when you meet with peoples dark nature. Personally, when I doubt in people I feel dark and heavy. I think we have to continuously believe in people and resonate with their good nature. But at the same time, to be able to accept their negative nature and help them to clean it up. In my understanding, it is connected with their lineage and their country background. That can be quite heavy. And to resolve it and clean up, it would be necessary many generations of efforts - to change culture and character and habits of people for better. But, I (we) should not give up on that.