He'd round up all the homeless people to provide as many really dirt feet as possible. Then he'd get each of the "protestors" to wash for a full day at least 50 pairs of dirty feet each. That would knock a bit of humility and peace into each of them, and they'd share something positive in common.
"The White Race is flocking to genetic ancestry tests. Some don’t like what they find." https://elitetrader.com/et/threads/...y-tests-some-dont-like-what-they-find.312268/
Perhaps the father could say "Please son, renounce the hate, accept and love all. We want you to come home soonest."!
https://www.vox.com/2017/8/20/16167870/aclu-hate-speech-nazis-charlottesville White nationalists are met by a group of counter-protesters in Charlottesville, Virginia. Photo by Joshua Roberts/Reuters http://www.pbs.org/newshour/rundown...lu-change-policy-hate-groups-protesting-guns/