They see the drip-drip-drip of "brown" people unfurling the Mexican flag, municipal swimming pools with men-only hours and University foot baths.
http://www.huffingtonpost.com/miriam-rosenbaum/womens-only-s...
http://www.nydailynews.com/opinion/muslim-footbaths-threaten...
http://www.newsweek.com/white-nationalists-are-right-america...