Wrong on all counts. A Constitutional Amendment is a change to the Constitution itself, and thus cannot be over-ruled or changed by the Supreme Court.
The USSC has the power of judicial review for all cases arising before it. [See Art. III]
The Constitutionality of the 18th was questioned, and they reviewed that question. - Sadly, they opined that a repugnant act of prohibition was Constitutional, contrary to all of our principles of liberty.
Fortunately, the people ignored them, and overruled by passing the 21st.
If 3/4th's of state legislatures so vote, they can convene a Constitutional Convention, which can eliminate the current Constitution
Yep, -- that's what they would have to do, in order to pass a 'law' repugnant to our basic Constitutional principles; -- "eliminate the current Constitution".
(and the Supreme Court itself, if they so choose) and replace them with a completely new governing document. You can tap-dance around the issue all you like. The fundamental question is completely clear--the people can amend the Constitution in any way they so choose, and the Supreme Court has no option other than to go along with their fianl judgment.
Tap dancing? I'm not the one here claiming that we can "eliminate the current Constitution". You are.
Well, a lot of really high-powered Constitutional law professors agree with me. I suggest you go and actually READ the Constitution again instead of pulling ridiculous arguments out of your rectum.
Three-quarters of the states CAN call a Constitutional Convention--the powers of which are unlimited in any way (except what they choose to impose upon themselves). They can make any change they wish to the Constitution, including throwing it out and starting over.