Discourse and logical thinking are the basis of modern society and all of it's afforded comforts. If the inventors of the past had coddled themselves in a hugbox for their entire lives we would still be saying things along the lines of "A train can never go more than 10 miles an hour", "there wont be a market for more than 10 computers in the world", and "you wont ever need more than 64k of ram" because there would have been no one who would have heard--or even said for that matter--"No!"
If someone disagrees with you, just explain your points rationally and calmly. If it something you are passionate about, like the OP has pointed out in https://xkcd.com/386/, then isn't it worth the 15 minutes it will take to explain your viewpoint as I am doing here?
Not only does much of the public discourse consist of people talking past each other, but the need to create "safe spaces" where we can be sure not to hurt anyone's feelings.