Calling for a state convention and achieving one are two different things, getting close to having one would scare the crap out of the politico’s.
The problem I see with that approach is that the politicos know THEY would control the constitutional convention - and therefore control its product.
Obambi, Hillary, Pelosi, Reid, et al. would be salivating and palpitating in ecstacy at the thought of rewriting the constitution in their own image.