Strongly disagree. We do not need a constitutional convention. Once you open the patient the best way to let it die is to just do nothing.
A constitutional convention would be subject to terrible corruption and misuse and instead of getting back what we already have in the existing Constitution we would lose or change what we treasure most because it would not be re-constructed as carefully and as fairly as it was originally written.
I do agree that the states need to tell the federal government to take a hike. That is something that may be forced on them soon and I hope they take up the challenge.
Still I think these states that get out would have to get together in some ways (trade, treaties..etc.) in order to survive. Washington won’t die quietly. We know them too well to think that.