By Andrew Mark Miller | Fox News | Published August 3, 2023 3:17pm EDT Read more at https://www.foxnews.com/us/oregon-county-lost-1-billion-2020-residents-fled-crime-homelessness-its-like-portland-died A Portland, Oregon, doctor knocked unconscious while walking in the city says her attack highlights ongoing problems with homelessness, mental illness and police shortages. Multnomah County, where Portland, Oregon, is located, reportedly lost more than $1 billion in income between…