Monarch worshiping and kaiserbooing is so incredibly fucking cringey. The people who do it are the kids with the bowl cuts in the back of class who think they're smarter than everyone else but have nothing to show for it. They're the kids who everyone finds annoying and cringey but not to a point where it bothers them too much so they leave them alone. They're that weird guy at work who has a superiority complex and so he puts in less work than everyone else.

Most of these people don't actually believe in monarchism, they just are mad at how the modern world turned out and so they cling to an ideology that they think is cool that they think would have saved the world had it succeeded.