My politically incorrect suggestion...
...is that we allow these neo-Nazis the opportunity to experience the Dresden bombing for themselves. Its too bad we don't have a time machine to send them all back to February 13, 1945.
The Dresden bombing was the justified and unavoidable consequence of the German nation tolerating the crimes of their Nazi leaders. Like Hiroshima and Nagasaki, it was a necessary act to accelerate a conclusion to the war.