There are so many things wrong with this post, first is just because your family has a German heritage doesn't make it okay to imply the word Nazi anywhere joke or non joke.
Also to buy Mojang is not possible unless they can approve your request. Even if you did "buy" Mojang doesn't mean you can unban yourself on any server, it just means you control how the game will move farther in the development process. Which requires lots of work that ,based on the sound of your age, won't be to your capabilities