In the wake of the Supreme Court’s ban on racial preferences in college admissions, lawmakers in the city, like those in Albany and on Capitol Hill, are pushing new laws to block similar favoritism for applicants with family ties to the schools.

A bill in the Legislature would prohibit colleges from asking where an applicant’s parents went, with a hefty fine on schools that violate the ban; last week, the City Council voted to urge state lawmakers to pass it.

What do you know? The council is actually looking to correct some real and blatant unfairness for a change, even if lawmakers may be going too far by pushing for the law.

Critics are certainly right that so-called legacy admissions, much like racial preferences, are unfair.

They call it “affirmative action” for the rich and well-connected, and they have a point: Admitting someone with connections to a school over someone who lacks them but has better qualifications is unfair.

Still, hard and fast laws dictating what private players can do strike us as heavy-handed.

Indeed, colleges make admissions decisions based on numerous factors, many of which might be considered “unfair.” Lawmakers have no business second-guessing them.

Racial preferences, of course, are different: As the Supreme Court ruled, they’re unconstitutional and violate federal rules for schools that receive federal funding (as most do).

They also run counter to an honorable bedrock US principle: No one should suffer discrimination based on race — no matter the reason.

As nice as it is to see the council, and other lawmakers, finally piping up with a real issue, the fact is, it’s simply not their business.