State Alphabet Defect

Bound on a walk I chanced on a fact I hadn’t noted
E’er before. We omit some letters, others we ignore;
Just nineteen of the twenty-six start every name of states.
Quite a scandal, this, that not even my literary
X-ray eyes have managed to correct. Let re-naming begin:
You’ll find the Missing at the start of this short poem’s lines.
Zounds! I almost zapped the most important last. A state named Zing?