Not true:
Balanced Budget Amendment - 13 States
Federal Debt Amendment - 10 states
Actually, 28 states have passed a Balanced Budget petition.
I actually think a single-issue convention might be the way to go. It can show the way, set the rules, etc. And then the states can get together and meet one issue at a time if need be. It will also shove aside all the “runaway convention” fears.
Either way, the people through the states need to take the lead.