Once the Convention is called, there are no limits on how much change can be done. That being said I am all for a Convention of States because no matter how many amendments they propose, the amendments still have to be ratified by the states.
There is precedent in past COS where a delegation went outside the bounds of the call topic. I don’t have the exact reference handy of the date and topic, but I’m recollecting the gist of things: The other delegations recognized the breech of protocol of the errant delegation, and voted them down.
In this case, a 2014 COS (2015 COS?), the call topic is ‘Reigning-in a run-away federal government’. An errant delegation trying to ram thru a statist-like amendment won’t get far, IMHO. And, even if some kook amendment got thru, as you point out it would still have the major hurdle of getting ratification by 38 states.
Zactly. So the Libs could pass an amendment that says government provided healthcare is a right, but when 17 (or more) states vote "no", it is over.