I'm not a lawyer, but don't the courts only rule on present law, ultimately Constitutional law? Congress makes the laws as you discussed elsewhere.
IMO, this is a pure 14th Amendment issue. Not a gender issue. Not a race issue. A basic American citizen rights issue. All citizens have “equal protection of the laws".
That's not always happening in America. The recent redistricting in Texas is a bold example of seeking to make some Texans more equal than others.
That's not in the spirit of the Amendment.
I don't understand your comment about ruling on current law, but a relatively few federal court cases rule on the constitutionality of an issue. Most cases involve interpretation of federal statutes.
It is a 14th amendment issue but it is a racial issue if a university policy gives an advantage to one race (10 points on admissions application). Universities and employers have a lot of flexibility in admissions or hiring employees. A person who is best on paper may not be the best student/employee. How do basic American citizen rights apply to admissions policies as long as the policy does not specifically discriminate against them.
I don't see how the Texas redistricting makes any citizen more equal than others. Redistricting has long been ruled a "political question" because it is done by a political body. The advantage goes to the winning party. Basically, Texas just increased incumbent protection which is very common in redistricting.
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