The “we” you speak of ARE THE STATES!
A convention simply PROPOSES amendments... They will be debated, ratified, defeated, etc....
Then and only then will they be sent to the states for ratification... You’ll have you chance for input in many ways but ultimately you’ll VOTE it up or down in your state...
Term Limits and fiscal responsibility amendments have BROAD support across party lines... Last poll I saw was 60+% in support...
Changing the laws, even changing the constitution, means nothing if the current laws and constitution aren't enforced. If we can't enforce what we have, what difference will a new Potemkin constitution make?