…but what stops the judges from passing an unjust law?..

Well, ostensibly it’s congress that passes the laws and the courts may say how they are interpreted or implemented.

If the courts are interpreting the laws against what the authors of the law intended, it is up to congress to write laws that are better and pass constitutional muster without question…

We’re at the point we are because of poorly written laws that have led to loopholes and poor implementation being taken advantage of.