The supreme court has no explicit constitutional mechanism or authority to enforce their decisions, so they literally made one up, the idea that when they declare a law unconstitutional it just suddenly stops being a law.

Everyone just goes along with it because the whole country was designed from the ground up to prevent good things and only elect people who want to prevent good things. But there’s literally no reason the rest of the government couldn’t just go “thanks for your opinion but we don’t gaf”