Yes? I had them help me draft it. Why wouldn't a license be enforceable?
You can write a license that has any kind of requirement in order to use it, such as "you must stand on one foot while using this software". If they don't agree, they can't use the software, and you can take them to court saying they aren't meeting the requirements of the license and must stop using the software.
When writing a license, or any kind of contract, you need to balance your rights and the folks using it. Licenses like MIT rob the creator of their rights, and no license gives the user no rights.
No offense, but you might want a better lawyer if you don't think there is such a thing as an unenforceable software license. At a bare minimum, consider a license that requires committing a crime in order to be compliant with the license. And copyright law and contract law are far more complex than just that.