First, you're wrong about Congress having to agree to have such a convention. If 2/3s of the state legislatures call for one, Congress must convene one. It's mandatory.
Second, what you're saying about each state having its own convention makes no sense. There will be one national Article V convention. Each state legislature can decide to send whatever delegates it wishes. State conventions? You're making that up. I have to think that you really don't know anything about this subject.
"...as part of this Constitution, when ratified by the legislatures of three fourths of the several states, OR by conventions in three fourths thereof...."In many cases, conventions of a state will/could supplant the state legislature as the determinative body according to the Article. So tell me, what happens if a convention is held that contradicts what the legislature of a state votes to do....and who decides who is part of the state's "convention"? So much is unclear because this is all new stuff...and anything open to interpretation will become a point of controversy and deep division. At which point, of course, the judicial branch will become a decisive arbiter.
So you may think you've dealt with "misconceptions" but you've simply self comforted with assertions based on personal subjective views of how this process would function and what it would achieve. Don't misunderstand, I'm not arguing that such a convention is innately a bad thing...just that its never going to happen.
As WeirdTolkein said, the answer is a public that's votes in a more informed and rational manner....and a leadership on our side that is effective, reasonable, and devoted to the constitution. That IS the only answer...the only answer that is feasible. Wasting your energies hoping for something like an Article 5 convention is akin to basing your financial planning on buying a winning lottery ticket. It would be a great shortcut to success....but the truth is that the real fix to our problems is good planning, smart use of our funds, and a lot of good old fashioned...and often frustrating and tedious...hard work. We can't fix this country with the shortcut your hoping for, we have to do the long and difficult way. Accept that, is my advice, and start focusing your energies on solutions that actually have a chance of being implemented.
For the record, nobody is arguing that we do nothing...on the contrary...we are arguing that we all do the hard work and put in endless years of fighting for a cause that is always going to be imperfect. There is no political "powerball" ticket that will solve all our problems in one fell swoop.