"Muggers use the treat of violence to take money, government threatens violence if you don't pay taxes, ergo, taxation is the same as mugging and you may now assign to taxation all the dislike you have for mugging" is a terrible argument. Some form of bad syllogism, specifically, I'd say. If you really want to advance these positions, get better at it—then let me know when you have, because I've not ever seen them advocated particularly well and that'd surely be interesting.