Don't know about Germany, but in the U.S. it's just fear mongering. Once you convince your side that the other side is a bunch of baby killing, child genital mutilating, corrupt, Satan worshipping libtards that want to get paid to sit around all day leaching off your hard work, oh and don't forget they wanna take your guns away so you can't "protect your family".. then you can justify doing anything and everything to them.
I've never understood how the "keep the government out of my life" party is also the "I disagree with the way you live your life so I'm going to ban your very existence" party. Do they not see the hypocrisy? What a complete and utter lack of self awareness.