This is the crux of the problem. The "Executive branch" is basically the cops. That leeway lets the cops invent law, prosecute you, and potentially imprison you. There's another case where the executive branch effectively acted as the legislator, cops, and the judicial branch (they prosecuted someone for a rule they created and found them guilty, all internally).
Congress needs to do these things, via simple and explicit laws that are clear and easy to understand. The role of the executive is _enforcement_, while the judicial arbitrates.
This is the crux of the problem. The "Executive branch" is basically the cops. That leeway lets the cops invent law, prosecute you, and potentially imprison you. There's another case where the executive branch effectively acted as the legislator, cops, and the judicial branch (they prosecuted someone for a rule they created and found them guilty, all internally).
Congress needs to do these things, via simple and explicit laws that are clear and easy to understand. The role of the executive is _enforcement_, while the judicial arbitrates.