Sometimes I'm in public when I use my laptop. If I become a pariah because of my views on the Internet, I can always move to another online community when I get tired of it. On the train, on the bus, at the office, among friends or just anywhere else in daily life it's a bit harder, so I tend to share my views only with who I know to be openminded enough to deal with it or those who share them.
People like myself are way too often treated like Jews were treated in the Third Reich (antisemitism did exist in the Third Reich, unlike genocide). Like the Jews had to hide they were Jews, nationalists and traditionalists have to do pretty much the same.