I don’t know about going around calling things tumah. When one walks on the street they need to see where they’re going and depending where they live/work they might see more or less indecency, but surely I would assume that the hashkafa of every frum Yid is that we cannot willfully bring into our house or into our minds immoral images and articles. Our houses are the miniature mishkans and our hearts as well. Why would we willfully want to be metamah (I hope I used the correct term here)our hearts and homes?
Or do you have a different opinion of what the hashkafa of a frum Yid ahould be?