Be careful what you wish for.
An Article Five convention is an open door to rewriting the entire Constitution, not a method for pushing a single amendment.
Once empaneled you could have States like California able to convince other large States with similar views amongst their populace to push for changes in free speech, second amendment rights, and religious freedom.
On the other hand States with a conservative lean might go for "defense of marriage" and other kinds of "protections" which may sound good to extremists...but IMO infringe on individual liberty just as much as Left-wing efforts to curb free speech and self-defense rights.
As for your comment about why people don't know much about it? I believe the only prior time our nation saw such a convention was at the original Founding when the Bill of Rights was constructed.
That is typically covered in American History classes in 11th or 12th grade. But while some States and localities require civics classes, many don't, so the only time kids learn of it is briefly in such American History classes.
1.) Why don't people seem to know of Article 5 Convention Of States of the Constitution , 10 states have already joined----
2.) -call your senators and representatives to support it-----it was written in by the framers as a last resort for the states when their power is being usurped by a lawless and too far overreach by the federal government.