A Constitutional Do-Over: To Beer or Not to Beer

Is it constitutional to do a constitutional do-over? The 18th and 21st Amendments, virtue signaling teetotaling, then not so much, seem to imply it's OK.
Is it constitutional to do a constitutional do-over? The 18th and 21st Amendments, virtue signaling teetotaling, then not so much, seem to imply it's OK.