The fact that it’s used for crime means that it actually does what it’s supposed to do and keeping people private. Shoes are also used by bank robbers and we don’t ban shoes. Monero is a tool the same as a hammer or a shoe or a car or a gun.
The problem is that it has zero accountability. Shoes, cars, cash and guns are all physical. At the end of the day someone can inspect your shoes or prevent you from taking a gun inside of a theater. Monero allows payments from anywhere and completely anonymously. You can get rid of it as it is decentralized but you can just not use it especially since cash is easy, private and secure.