The Supreme Court can not overturn a Constitutional Amendment.
Isn't is a pity that you are required to remind somebody of this fact?
If the congress and the states pass an amendment that states all cheese except for Extra Sharp cheddar is illegal, the supreme court must honor that as law.
The constitution is living, each time it is amended it changes. If people genuinely want changes, they can petition the congress to pass an amendment. If for example, somebody wants to jail homosexuals, they could pass an amendment to the constitution, get it ratified by the states, and it would be the law of the land.
Why is this concept so difficult for people to grasp?
That's supposed to be true, but of course, they presume the power to do it all the time, bit by bit, ruling by ruling.
The Lawrence v. Texas decision overturned the 10th Amendment. The 10th is now null and void.